31423300 has 18 divisors (see below), whose sum is σ = 68188778. Its totient is φ = 12569280.

The previous prime is 31423297. The next prime is 31423331. The reversal of 31423300 is 332413.

It can be written as a sum of positive squares in 3 ways, for example, as 1327104 + 30096196 = 1152^2 + 5486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157017 + ... + 157216.

Almost surely, 2^31423300 is an apocalyptic number.

It is an amenable number.

31423300 is an abundant number, since it is smaller than the sum of its proper divisors (36765478).

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

31423300 is a wasteful number, since it uses less digits than its factorization.

31423300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314247 (or 314240 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 31423300 is about 5605.6489365639. The cubic root of 31423300 is about 315.5614409807.

Adding to 31423300 its reverse (332413), we get a palindrome (31755713).

The spelling of 31423300 in words is "thirty-one million, four hundred twenty-three thousand, three hundred".