1020031002 has 32 divisors (see below), whose sum is σ = 2365292160. Its totient is φ = 325226880.

The previous prime is 1020030983. The next prime is 1020031021. The reversal of 1020031002 is 2001300201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020030983) and next prime (1020031021).

It is a super-2 number, since 2×1020031002² = 2080926490082248008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 409399 + ... + 411882.

It is an arithmetic number, because the mean of its divisors is an integer number (73915380).

Almost surely, 2^1020031002 is an apocalyptic number.

1020031002 is an abundant number, since it is smaller than the sum of its proper divisors (1345261158).

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

1020031002 is a wasteful number, since it uses less digits than its factorization.

1020031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821315 (or 821309 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1020031002 is about 31937.9241967915. The cubic root of 1020031002 is about 1006.6329079265.

Adding to 1020031002 its reverse (2001300201), we get a palindrome (3021331203).

The spelling of 1020031002 in words is "one billion, twenty million, thirty-one thousand, two".