31400103310002 has 72 divisors (see below), whose sum is σ = 80634304692396. Its totient is φ = 8802185281344.

The previous prime is 31400103309907. The next prime is 31400103310003. The reversal of 31400103310002 is 20001330100413.

It can be written as a sum of positive squares in 2 ways, for example, as 31321047303441 + 79056006561 = 5596521^2 + 281169^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31400103310003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 335811973 + ... + 335905464.

Almost surely, 2^{31400103310002} is an apocalyptic number.

31400103310002 is an abundant number, since it is smaller than the sum of its proper divisors (49234201382394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31400103310002 is a wasteful number, since it uses less digits than its factorization.

31400103310002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671717512 (or 671717502 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31400103310002 its reverse (20001330100413), we get a palindrome (51401433410415).

The spelling of 31400103310002 in words is "thirty-one trillion, four hundred billion, one hundred three million, three hundred ten thousand, two".