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142312431214121 = 7122531659213851
BaseRepresentation
bin100000010110111010110001…
…111010001101111000101001
3200122212221021000112112020012
4200112322301322031320221
5122123121324342322441
61222401232305141305
741655506466221330
oct4026726172157051
9618787230475205
10142312431214121
11413883aa385503
1213b6512932a835
13615400a38826c
14271dd5bca8d17
15116bd161c59eb
hex816eb1e8de29

142312431214121 has 8 divisors (see below), whose sum is σ = 162656052339264. Its totient is φ = 121972128541200.

The previous prime is 142312431214099. The next prime is 142312431214127. The reversal of 142312431214121 is 121412134213241.

142312431214121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142312431214121 - 214 = 142312431197737 is a prime.

It is a super-2 number, since 2×1423124312141212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142312431214127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829521155 + ... + 829692696.

It is an arithmetic number, because the mean of its divisors is an integer number (20332006542408).

Almost surely, 2142312431214121 is an apocalyptic number.

It is an amenable number.

142312431214121 is a deficient number, since it is larger than the sum of its proper divisors (20343621125143).

142312431214121 is a wasteful number, since it uses less digits than its factorization.

142312431214121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659226111.

The product of its digits is 9216, while the sum is 32.

Adding to 142312431214121 its reverse (121412134213241), we get a palindrome (263724565427362).

The spelling of 142312431214121 in words is "one hundred forty-two trillion, three hundred twelve billion, four hundred thirty-one million, two hundred fourteen thousand, one hundred twenty-one".

Divisors: 1 7 12253 85771 1659213851 11614496957 20330347316303 142312431214121