20152453122 has 48 divisors (see below), whose sum is σ = 45578827008. Its totient is φ = 6423056640.

The previous prime is 20152453121. The next prime is 20152453147. The reversal of 20152453122 is 22135425102.

20152453122 is a `hidden beast` number, since 201 + 5 + 2 + 453 + 1 + 2 + 2 = 666.

It is a super-2 number, since 2×20152453122² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20152453121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1376722 + ... + 1391282.

It is an arithmetic number, because the mean of its divisors is an integer number (949558896).

Almost surely, 2^20152453122 is an apocalyptic number.

20152453122 is an abundant number, since it is smaller than the sum of its proper divisors (25426373886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20152453122 is a wasteful number, since it uses less digits than its factorization.

20152453122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17935 (or 17932 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 20152453122 its reverse (22135425102), we get a palindrome (42287878224).

The spelling of 20152453122 in words is "twenty billion, one hundred fifty-two million, four hundred fifty-three thousand, one hundred twenty-two".