1002345015401 has 4 divisors (see below), whose sum is σ = 1006722068100. Its totient is φ = 997967962704.

The previous prime is 1002345015391. The next prime is 1002345015437. The reversal of 1002345015401 is 1045105432001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 718975109776 + 283369905625 = 847924^2 + 532325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002345015401 - 2³⁸ = 727467108457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1002345005401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188526006 + ... + 2188526463.

It is an arithmetic number, because the mean of its divisors is an integer number (251680517025).

Almost surely, 2^{1002345015401} is an apocalyptic number.

It is an amenable number.

1002345015401 is a deficient number, since it is larger than the sum of its proper divisors (4377052699).

1002345015401 is an equidigital number, since it uses as much as digits as its factorization.

1002345015401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377052698.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 1002345015401 in words is "one trillion, two billion, three hundred forty-five million, fifteen thousand, four hundred one".