31242130120101 has 16 divisors (see below), whose sum is σ = 42673954091328. Its totient is φ = 20319238742400.

The previous prime is 31242130120037. The next prime is 31242130120127. The reversal of 31242130120101 is 10102103124213.

It is not a de Polignac number, because 31242130120101 - 2⁶ = 31242130120037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31242130110101) 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 15 ways as a sum of consecutive naturals, for example, 2313295 + ... + 8236236.

It is an arithmetic number, because the mean of its divisors is an integer number (2667122130708).

Almost surely, 2^{31242130120101} is an apocalyptic number.

It is an amenable number.

31242130120101 is a deficient number, since it is larger than the sum of its proper divisors (11431823971227).

31242130120101 is a wasteful number, since it uses less digits than its factorization.

31242130120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10573652.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31242130120101 its reverse (10102103124213), we get a palindrome (41344233244314).

The spelling of 31242130120101 in words is "thirty-one trillion, two hundred forty-two billion, one hundred thirty million, one hundred twenty thousand, one hundred one".