142121241101031 has 32 divisors (see below), whose sum is σ = 209465055475200. Its totient is φ = 85256338320384.

The previous prime is 142121241101029. The next prime is 142121241101089. The reversal of 142121241101031 is 130101142121241.

It is not a de Polignac number, because 142121241101031 - 2¹ = 142121241101029 is a prime.

It is a super-2 number, since 2×142121241101031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142121241100992 and 142121241101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142121241101131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26399350 + ... + 31323603.

It is an arithmetic number, because the mean of its divisors is an integer number (6545782983600).

Almost surely, 2^{142121241101031} is an apocalyptic number.

142121241101031 is a deficient number, since it is larger than the sum of its proper divisors (67343814374169).

142121241101031 is a wasteful number, since it uses less digits than its factorization.

142121241101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57725095.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 142121241101031 its reverse (130101142121241), we get a palindrome (272222383222272).

The spelling of 142121241101031 in words is "one hundred forty-two trillion, one hundred twenty-one billion, two hundred forty-one million, one hundred one thousand, thirty-one".