31020031112102 has 16 divisors (see below), whose sum is σ = 49865337912672. Its totient is φ = 14434703078400.

The previous prime is 31020031112101. The next prime is 31020031112111. The reversal of 31020031112102 is 20121113002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020031112101) 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, 9112815899 + ... + 9112819302.

It is an arithmetic number, because the mean of its divisors is an integer number (3116583619542).

Almost surely, 2^{31020031112102} is an apocalyptic number.

31020031112102 is a deficient number, since it is larger than the sum of its proper divisors (18845306800570).

31020031112102 is a wasteful number, since it uses less digits than its factorization.

31020031112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18225635263.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31020031112102 its reverse (20121113002013), we get a palindrome (51141144114115).

The spelling of 31020031112102 in words is "thirty-one trillion, twenty billion, thirty-one million, one hundred twelve thousand, one hundred two".