20315151022045 has 32 divisors (see below), whose sum is σ = 27212453708544. Its totient is φ = 14433673612800.

The previous prime is 20315151022009. The next prime is 20315151022051. The reversal of 20315151022045 is 54022015151302.

It is not a de Polignac number, because 20315151022045 - 2³¹ = 20313003538397 is a prime.

It is a super-2 number, since 2×20315151022045² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20315151021998 and 20315151022016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14276121 + ... + 15634510.

It is an arithmetic number, because the mean of its divisors is an integer number (850389178392).

Almost surely, 2^{20315151022045} is an apocalyptic number.

It is an amenable number.

20315151022045 is a deficient number, since it is larger than the sum of its proper divisors (6897302686499).

20315151022045 is a wasteful number, since it uses less digits than its factorization.

20315151022045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29910933.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 20315151022045 its reverse (54022015151302), we get a palindrome (74337166173347).

The spelling of 20315151022045 in words is "twenty trillion, three hundred fifteen billion, one hundred fifty-one million, twenty-two thousand, forty-five".