10031031998 has 16 divisors (see below), whose sum is σ = 16908496416. Its totient is φ = 4428415200.

The previous prime is 10031031979. The next prime is 10031032003. The reversal of 10031031998 is 89913013001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8386553 + ... + 8387748.

It is an arithmetic number, because the mean of its divisors is an integer number (1056781026).

Almost surely, 2^10031031998 is an apocalyptic number.

10031031998 is a deficient number, since it is larger than the sum of its proper divisors (6877464418).

10031031998 is a wasteful number, since it uses less digits than its factorization.

10031031998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16774339.

The product of its (nonzero) digits is 5832, while the sum is 35.

Adding to 10031031998 its reverse (89913013001), we get a palindrome (99944044999).

The spelling of 10031031998 in words is "ten billion, thirty-one million, thirty-one thousand, nine hundred ninety-eight".