1020011002 has 4 divisors (see below), whose sum is σ = 1530016506. Its totient is φ = 510005500.

The previous prime is 1020010993. The next prime is 1020011017. The reversal of 1020011002 is 2001100201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2001100201 = 40883 ⋅48947.

It can be written as a sum of positive squares in only one way, i.e., 1011939721 + 8071281 = 31811^2 + 2841^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255002749 + ... + 255002752.

Almost surely, 2^1020011002 is an apocalyptic number.

1020011002 is a deficient number, since it is larger than the sum of its proper divisors (510005504).

1020011002 is an equidigital number, since it uses as much as digits as its factorization.

1020011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510005503.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1020011002 is about 31937.6110878694. The cubic root of 1020011002 is about 1006.6263287834.

Adding to 1020011002 its reverse (2001100201), we get a palindrome (3021111203).

The spelling of 1020011002 in words is "one billion, twenty million, eleven thousand, two".