1020315313345 has 16 divisors (see below), whose sum is σ = 1231788700800. Its totient is φ = 811312660224.

The previous prime is 1020315313301. The next prime is 1020315313351. The reversal of 1020315313345 is 5433135130201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020315313345 - 2⁷ = 1020315313217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18048694 + ... + 18105136.

It is an arithmetic number, because the mean of its divisors is an integer number (76986793800).

Almost surely, 2^{1020315313345} is an apocalyptic number.

It is an amenable number.

1020315313345 is a deficient number, since it is larger than the sum of its proper divisors (211473387455).

1020315313345 is a wasteful number, since it uses less digits than its factorization.

1020315313345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78264.

The product of its (nonzero) digits is 16200, while the sum is 31.

The spelling of 1020315313345 in words is "one trillion, twenty billion, three hundred fifteen million, three hundred thirteen thousand, three hundred forty-five".