1231012002 has 32 divisors (see below), whose sum is σ = 2696094720. Its totient is φ = 371610320.

The previous prime is 1231011997. The next prime is 1231012043. The reversal of 1231012002 is 2002101321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18102 + ... + 52817.

It is an arithmetic number, because the mean of its divisors is an integer number (84252960).

Almost surely, 2^1231012002 is an apocalyptic number.

1231012002 is an abundant number, since it is smaller than the sum of its proper divisors (1465082718).

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

1231012002 is a wasteful number, since it uses less digits than its factorization.

1231012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71198.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1231012002 is about 35085.7806240648. The cubic root of 1231012002 is about 1071.7350375684.

Adding to 1231012002 its reverse (2002101321), we get a palindrome (3233113323).

The spelling of 1231012002 in words is "one billion, two hundred thirty-one million, twelve thousand, two".