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142342024121 = 11371392516077
BaseRepresentation
bin1000010010010000111…
…1101110101110111001
3111121102001122000212022
42010210033232232321
54313004024232441
6145220243324225
713166240145653
oct2044417565671
9447361560768
10142342024121
11554043a8570
1223706080675
1310565b5c09b
146c646b96d3
153a8164484b
hex21243eebb9

142342024121 has 16 divisors (see below), whose sum is σ = 160626419520. Its totient is φ = 124998655680.

The previous prime is 142342024109. The next prime is 142342024171. The reversal of 142342024121 is 121420243241.

It is a cyclic number.

It is not a de Polignac number, because 142342024121 - 26 = 142342024057 is a prime.

It is a super-2 number, since 2×1423420241212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142342024171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1201466 + ... + 1314611.

It is an arithmetic number, because the mean of its divisors is an integer number (10039151220).

Almost surely, 2142342024121 is an apocalyptic number.

142342024121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142342024121 is a deficient number, since it is larger than the sum of its proper divisors (18284395399).

142342024121 is a wasteful number, since it uses less digits than its factorization.

142342024121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516264.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 142342024121 its reverse (121420243241), we get a palindrome (263762267362).

The spelling of 142342024121 in words is "one hundred forty-two billion, three hundred forty-two million, twenty-four thousand, one hundred twenty-one".

Divisors: 1 11 37 139 407 1529 5143 56573 2516077 27676847 93094849 349734703 1024043339 3847081733 12940184011 142342024121