31030112111302 has 4 divisors (see below), whose sum is σ = 46545168166956. Its totient is φ = 15515056055650.

The previous prime is 31030112111269. The next prime is 31030112111309. The reversal of 31030112111302 is 20311121103013.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×31030112111302² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31030112111302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030112111309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7757528027824 + ... + 7757528027827.

It is an arithmetic number, because the mean of its divisors is an integer number (11636292041739).

Almost surely, 2^{31030112111302} is an apocalyptic number.

31030112111302 is a deficient number, since it is larger than the sum of its proper divisors (15515056055654).

31030112111302 is a wasteful number, since it uses less digits than its factorization.

31030112111302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15515056055653.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31030112111302 its reverse (20311121103013), we get a palindrome (51341233214315).

The spelling of 31030112111302 in words is "thirty-one trillion, thirty billion, one hundred twelve million, one hundred eleven thousand, three hundred two".