31344441420 has 48 divisors (see below), whose sum is σ = 87859064160. Its totient is φ = 8349505536.

The previous prime is 31344441413. The next prime is 31344441433. The reversal of 31344441420 is 2414444313.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 225427 + ... + 336906.

It is an arithmetic number, because the mean of its divisors is an integer number (1830397170).

Almost surely, 2^31344441420 is an apocalyptic number.

31344441420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31344441420 is an abundant number, since it is smaller than the sum of its proper divisors (56514622740).

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

31344441420 is a wasteful number, since it uses less digits than its factorization.

31344441420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563274 (or 563272 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31344441420 its reverse (2414444313), we get a palindrome (33758885733).

The spelling of 31344441420 in words is "thirty-one billion, three hundred forty-four million, four hundred forty-one thousand, four hundred twenty".