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142121210314311 = 3215791245590479
BaseRepresentation
bin100000010100001000101100…
…010000010111111001000111
3200122012122200111200100011200
4200110020230100113321013
5122112003214320024221
61222133325505433543
741635630036333524
oct4024105420277107
9618178614610150
10142121210314311
11413142a3148208
1213b3406193b8b3
13613bc84b25237
1427149bbb3a14b
151166d73846426
hex81422c417e47

142121210314311 has 6 divisors (see below), whose sum is σ = 205286192676240. Its totient is φ = 94747473542868.

The previous prime is 142121210314273. The next prime is 142121210314313. The reversal of 142121210314311 is 113413012121241.

142121210314311 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 21 + 2 + 10 + 314 + 311 = 666.

It is not a de Polignac number, because 142121210314311 - 225 = 142121176759879 is a prime.

It is a super-2 number, since 2×1421212103143112 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142121210314313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7895622795231 + ... + 7895622795248.

It is an arithmetic number, because the mean of its divisors is an integer number (34214365446040).

Almost surely, 2142121210314311 is an apocalyptic number.

142121210314311 is a deficient number, since it is larger than the sum of its proper divisors (63164982361929).

142121210314311 is a wasteful number, since it uses less digits than its factorization.

142121210314311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15791245590485 (or 15791245590482 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 142121210314311 its reverse (113413012121241), we get a palindrome (255534222435552).

The spelling of 142121210314311 in words is "one hundred forty-two trillion, one hundred twenty-one billion, two hundred ten million, three hundred fourteen thousand, three hundred eleven".

Divisors: 1 3 9 15791245590479 47373736771437 142121210314311