31350130 has 16 divisors (see below), whose sum is σ = 64491840. Its totient is φ = 10748592.

The previous prime is 31350103. The next prime is 31350149. The reversal of 31350130 is 3105313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223860 + ... + 223999.

It is an arithmetic number, because the mean of its divisors is an integer number (4030740).

Almost surely, 2^31350130 is an apocalyptic number.

31350130 is an abundant number, since it is smaller than the sum of its proper divisors (33141710).

31350130 is a wasteful number, since it uses less digits than its factorization.

31350130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447873.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 31350130 is about 5599.1186806497. The cubic root of 31350130 is about 315.3163195213.

Adding to 31350130 its reverse (3105313), we get a palindrome (34455443).

The spelling of 31350130 in words is "thirty-one million, three hundred fifty thousand, one hundred thirty".