1002145512402 has 48 divisors (see below), whose sum is σ = 2177775737280. Its totient is φ = 333054943776.

The previous prime is 1002145512373. The next prime is 1002145512419. The reversal of 1002145512402 is 2042155412001.

It is a happy number.

1002145512402 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 145 + 512 + 4 + 0 + 2 = 666.

It is a super-3 number, since 3×1002145512402³ (a number of 37 digits) contains 333 as substring.

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, 44621808 + ... + 44644260.

It is an arithmetic number, because the mean of its divisors is an integer number (45370327860).

Almost surely, 2^{1002145512402} is an apocalyptic number.

1002145512402 is an abundant number, since it is smaller than the sum of its proper divisors (1175630224878).

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

1002145512402 is a wasteful number, since it uses less digits than its factorization.

1002145512402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29727 (or 29724 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 1002145512402 in words is "one trillion, two billion, one hundred forty-five million, five hundred twelve thousand, four hundred two".