1002145512115 has 48 divisors (see below), whose sum is σ = 1391517900864. Its totient is φ = 690974197760.

The previous prime is 1002145512089. The next prime is 1002145512127. The reversal of 1002145512115 is 5112155412001.

It is not a de Polignac number, because 1002145512115 - 2⁵ = 1002145512083 is a prime.

It is a super-2 number, since 2×1002145512115² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1253727 + ... + 1891063.

It is an arithmetic number, because the mean of its divisors is an integer number (28989956268).

Almost surely, 2^{1002145512115} is an apocalyptic number.

1002145512115 is a deficient number, since it is larger than the sum of its proper divisors (389372388749).

1002145512115 is a wasteful number, since it uses less digits than its factorization.

1002145512115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637500 (or 637489 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

The spelling of 1002145512115 in words is "one trillion, two billion, one hundred forty-five million, five hundred twelve thousand, one hundred fifteen".