20315102261043 has 8 divisors (see below), whose sum is σ = 27090925214656. Its totient is φ = 13541340407400.

The previous prime is 20315102261023. The next prime is 20315102261053. The reversal of 20315102261043 is 34016220151302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20315102261043 - 2⁶ = 20315102260979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20315102261043.

It is not an unprimeable number, because it can be changed into a prime (20315102261023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515251993 + ... + 515291418.

It is an arithmetic number, because the mean of its divisors is an integer number (3386365651832).

Almost surely, 2^{20315102261043} is an apocalyptic number.

20315102261043 is a deficient number, since it is larger than the sum of its proper divisors (6775822953613).

20315102261043 is a wasteful number, since it uses less digits than its factorization.

20315102261043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030549985.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 20315102261043 in words is "twenty trillion, three hundred fifteen billion, one hundred two million, two hundred sixty-one thousand, forty-three".