131012002 has 16 divisors (see below), whose sum is σ = 223705152. Its totient is φ = 56961520.

The previous prime is 131011997. The next prime is 131012009. The reversal of 131012002 is 200210131.

It is a self number, because there is not a number n which added to its sum of digits gives 131012002.

It is not an unprimeable number, because it can be changed into a prime (131012009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128953 + ... + 129964.

It is an arithmetic number, because the mean of its divisors is an integer number (13981572).

Almost surely, 2^131012002 is an apocalyptic number.

131012002 is a deficient number, since it is larger than the sum of its proper divisors (92693150).

131012002 is a wasteful number, since it uses less digits than its factorization.

131012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258953.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 131012002 is about 11446.0474400555. The cubic root of 131012002 is about 507.8908175672.

Adding to 131012002 its reverse (200210131), we get a palindrome (331222133).

The spelling of 131012002 in words is "one hundred thirty-one million, twelve thousand, two".