31201421032 has 16 divisors (see below), whose sum is σ = 58662077760. Its totient is φ = 15558200304.

The previous prime is 31201420979. The next prime is 31201421039. The reversal of 31201421032 is 23012410213.

It is a happy number.

It is a super-2 number, since 2×31201421032² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31201421039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5310658 + ... + 5316529.

It is an arithmetic number, because the mean of its divisors is an integer number (3666379860).

Almost surely, 2^31201421032 is an apocalyptic number.

It is an amenable number.

31201421032 is a deficient number, since it is larger than the sum of its proper divisors (27460656728).

31201421032 is a wasteful number, since it uses less digits than its factorization.

31201421032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10627560 (or 10627556 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31201421032 its reverse (23012410213), we get a palindrome (54213831245).

The spelling of 31201421032 in words is "thirty-one billion, two hundred one million, four hundred twenty-one thousand, thirty-two".