1020131002 has 16 divisors (see below), whose sum is σ = 1767500352. Its totient is φ = 436419520.

The previous prime is 1020130997. The next prime is 1020131009. The reversal of 1020131002 is 2001310201.

It is a super-2 number, since 2×1020131002² = 2081334522483048008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020131002.

It is not an unprimeable number, because it can be changed into a prime (1020131009) 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, 1363438 + ... + 1364185.

It is an arithmetic number, because the mean of its divisors is an integer number (110468772).

Almost surely, 2^1020131002 is an apocalyptic number.

1020131002 is a deficient number, since it is larger than the sum of its proper divisors (747369350).

1020131002 is a wasteful number, since it uses less digits than its factorization.

1020131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727653.

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

The square root of 1020131002 is about 31939.4896953599. The cubic root of 1020131002 is about 1006.6658023520.

Adding to 1020131002 its reverse (2001310201), we get a palindrome (3021441203).

The spelling of 1020131002 in words is "one billion, twenty million, one hundred thirty-one thousand, two".