20351042152 has 32 divisors (see below), whose sum is σ = 43748740800. Its totient is φ = 8694002304.

The previous prime is 20351042147. The next prime is 20351042171. The reversal of 20351042152 is 25124015302.

It is a super-2 number, since 2×20351042152² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563002 + ... + 598057.

It is an arithmetic number, because the mean of its divisors is an integer number (1367148150).

Almost surely, 2^20351042152 is an apocalyptic number.

It is an amenable number.

20351042152 is an abundant number, since it is smaller than the sum of its proper divisors (23397698648).

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

20351042152 is a wasteful number, since it uses less digits than its factorization.

20351042152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161385 (or 1161381 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20351042152 its reverse (25124015302), we get a palindrome (45475057454).

The spelling of 20351042152 in words is "twenty billion, three hundred fifty-one million, forty-two thousand, one hundred fifty-two".