31004114420 has 24 divisors (see below), whose sum is σ = 65132613000. Its totient is φ = 12397079552.

The previous prime is 31004114419. The next prime is 31004114467. The reversal of 31004114420 is 2441140013.

It can be written as a sum of positive squares in 4 ways, for example, as 16586348944 + 14417765476 = 128788^2 + 120074^2 .

It is a super-2 number, since 2×31004114420² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31004114392 and 31004114401.

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, 229445 + ... + 338604.

It is an arithmetic number, because the mean of its divisors is an integer number (2713858875).

Almost surely, 2^31004114420 is an apocalyptic number.

It is an amenable number.

31004114420 is an abundant number, since it is smaller than the sum of its proper divisors (34128498580).

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

31004114420 is a wasteful number, since it uses less digits than its factorization.

31004114420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570787 (or 570785 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31004114420 its reverse (2441140013), we get a palindrome (33445254433).

The spelling of 31004114420 in words is "thirty-one billion, four million, one hundred fourteen thousand, four hundred twenty".