31311214402030 has 16 divisors (see below), whose sum is σ = 56378466934704. Its totient is φ = 12520423313920.

The previous prime is 31311214402021. The next prime is 31311214402067. The reversal of 31311214402030 is 3020441211313.

It is a junction number, because it is equal to n+sod(n) for n = 31311214401986 and 31311214402004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507773491 + ... + 507835150.

It is an arithmetic number, because the mean of its divisors is an integer number (3523654183419).

Almost surely, 2^{31311214402030} is an apocalyptic number.

31311214402030 is a deficient number, since it is larger than the sum of its proper divisors (25067252532674).

31311214402030 is a wasteful number, since it uses less digits than its factorization.

31311214402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015611731.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31311214402030 its reverse (3020441211313), we get a palindrome (34331655613343).

The spelling of 31311214402030 in words is "thirty-one trillion, three hundred eleven billion, two hundred fourteen million, four hundred two thousand, thirty".