1002012102 has 48 divisors (see below), whose sum is σ = 2672036640. Its totient is φ = 264266496.

The previous prime is 1002012071. The next prime is 1002012131. The reversal of 1002012102 is 2012102001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304227 + ... + 307502.

It is an arithmetic number, because the mean of its divisors is an integer number (55667430).

Almost surely, 2^1002012102 is an apocalyptic number.

1002012102 is an abundant number, since it is smaller than the sum of its proper divisors (1670024538).

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

1002012102 is a wasteful number, since it uses less digits than its factorization.

1002012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611757 (or 611754 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1002012102 is about 31654.5747404700. The cubic root of 1002012102 is about 1000.6702513295.

Adding to 1002012102 its reverse (2012102001), we get a palindrome (3014114103).

It can be divided in two parts, 10020 and 12102, that added together give a palindrome (22122).

The spelling of 1002012102 in words is "one billion, two million, twelve thousand, one hundred two".