30131002 has 16 divisors (see below), whose sum is σ = 49787712. Its totient is φ = 13561920.

The previous prime is 30130999. The next prime is 30131033. The reversal of 30131002 is 20013103.

It is a self number, because there is not a number n which added to its sum of digits gives 30131002.

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, 4383 + ... + 8914.

It is an arithmetic number, because the mean of its divisors is an integer number (3111732).

Almost surely, 2^30131002 is an apocalyptic number.

30131002 is a deficient number, since it is larger than the sum of its proper divisors (19656710).

30131002 is a wasteful number, since it uses less digits than its factorization.

30131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13413.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30131002 is about 5489.1713400112. The cubic root of 30131002 is about 311.1748757150.

Adding to 30131002 its reverse (20013103), we get a palindrome (50144105).

The spelling of 30131002 in words is "thirty million, one hundred thirty-one thousand, two".