31044013420 has 48 divisors (see below), whose sum is σ = 74556776448. Its totient is φ = 10636355520.

The previous prime is 31044013411. The next prime is 31044013423. The reversal of 31044013420 is 2431044013.

It is a super-2 number, since 2×31044013420² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31044013391 and 31044013400.

It is not an unprimeable number, because it can be changed into a prime (31044013423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130569 + ... + 281311.

It is an arithmetic number, because the mean of its divisors is an integer number (1553266176).

Almost surely, 2^31044013420 is an apocalyptic number.

It is an amenable number.

31044013420 is an abundant number, since it is smaller than the sum of its proper divisors (43512763028).

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

31044013420 is a wasteful number, since it uses less digits than its factorization.

31044013420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152230 (or 152228 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31044013420 its reverse (2431044013), we get a palindrome (33475057433).

The spelling of 31044013420 in words is "thirty-one billion, forty-four million, thirteen thousand, four hundred twenty".