31004004030 has 32 divisors (see below), whose sum is σ = 74902399488. Its totient is φ = 8212980000.

The previous prime is 31004004019. The next prime is 31004004047. The reversal of 31004004030 is 3040040013.

It is a super-2 number, since 2×31004004030² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3417546 + ... + 3426605.

It is an arithmetic number, because the mean of its divisors is an integer number (2340699984).

Almost surely, 2^31004004030 is an apocalyptic number.

31004004030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31004004030 is an abundant number, since it is smaller than the sum of its proper divisors (43898395458).

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

31004004030 is a wasteful number, since it uses less digits than its factorization.

31004004030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844312.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 31004004030 its reverse (3040040013), we get a palindrome (34044044043).

The spelling of 31004004030 in words is "thirty-one billion, four million, four thousand, thirty".