31551114004 has 12 divisors (see below), whose sum is σ = 55215902644. Its totient is φ = 15775141824.

The previous prime is 31551113989. The next prime is 31551114013. The reversal of 31551114004 is 40041115513.

It can be written as a sum of positive squares in 2 ways, for example, as 26053188100 + 5497925904 = 161410^2 + 74148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31551114004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121552 + ... + 279064.

Almost surely, 2^31551114004 is an apocalyptic number.

It is an amenable number.

31551114004 is a deficient number, since it is larger than the sum of its proper divisors (23664788640).

31551114004 is a wasteful number, since it uses less digits than its factorization.

31551114004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207594 (or 207592 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 31551114004 its reverse (40041115513), we get a palindrome (71592229517).

The spelling of 31551114004 in words is "thirty-one billion, five hundred fifty-one million, one hundred fourteen thousand, four".