31004301420 has 48 divisors (see below), whose sum is σ = 96457828320. Its totient is φ = 8267813568.

The previous prime is 31004301409. The next prime is 31004301421. The reversal of 31004301420 is 2410340013.

It is a super-2 number, since 2×31004301420² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31004301393 and 31004301402.

It is not an unprimeable number, because it can be changed into a prime (31004301421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28707147 + ... + 28708226.

It is an arithmetic number, because the mean of its divisors is an integer number (2009538090).

Almost surely, 2^31004301420 is an apocalyptic number.

31004301420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31004301420 is an abundant number, since it is smaller than the sum of its proper divisors (65453526900).

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

31004301420 is a wasteful number, since it uses less digits than its factorization.

31004301420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57415391 (or 57415383 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31004301420 its reverse (2410340013), we get a palindrome (33414641433).

The spelling of 31004301420 in words is "thirty-one billion, four million, three hundred one thousand, four hundred twenty".