31300401 has 36 divisors (see below), whose sum is σ = 48248144. Its totient is φ = 18033840.

The previous prime is 31300397. The next prime is 31300403. The reversal of 31300401 is 10400313.

It is not a de Polignac number, because 31300401 - 2² = 31300397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31300403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 191946 + ... + 192108.

Almost surely, 2^31300401 is an apocalyptic number.

It is an amenable number.

31300401 is a deficient number, since it is larger than the sum of its proper divisors (16947743).

31300401 is a wasteful number, since it uses less digits than its factorization.

31300401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 31300401 is about 5594.6761300365. The cubic root of 31300401 is about 315.1495082669.

Adding to 31300401 its reverse (10400313), we get a palindrome (41700714).

The spelling of 31300401 in words is "thirty-one million, three hundred thousand, four hundred one".