31210140431004 has 48 divisors (see below), whose sum is σ = 73704177254400. Its totient is φ = 10278277603776.

The previous prime is 31210140431003. The next prime is 31210140431077. The reversal of 31210140431004 is 40013404101213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31210140431003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42479059 + ... + 43207530.

It is an arithmetic number, because the mean of its divisors is an integer number (1535503692800).

Almost surely, 2^{31210140431004} is an apocalyptic number.

It is an amenable number.

31210140431004 is an abundant number, since it is smaller than the sum of its proper divisors (42494036823396).

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

31210140431004 is a wasteful number, since it uses less digits than its factorization.

31210140431004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85686962 (or 85686960 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31210140431004 its reverse (40013404101213), we get a palindrome (71223544532217).

The spelling of 31210140431004 in words is "thirty-one trillion, two hundred ten billion, one hundred forty million, four hundred thirty-one thousand, four".