20372261103 has 48 divisors (see below), whose sum is σ = 31257256800. Its totient is φ = 13113446400.

The previous prime is 20372261089. The next prime is 20372261153. The reversal of 20372261103 is 30116227302.

20372261103 is a `hidden beast` number, since 20 + 3 + 7 + 22 + 611 + 0 + 3 = 666.

It is not a de Polignac number, because 20372261103 - 2⁵ = 20372261071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372261153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19952733 + ... + 19953753.

It is an arithmetic number, because the mean of its divisors is an integer number (651192850).

Almost surely, 2^20372261103 is an apocalyptic number.

20372261103 is a deficient number, since it is larger than the sum of its proper divisors (10884995697).

20372261103 is a wasteful number, since it uses less digits than its factorization.

20372261103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

Adding to 20372261103 its reverse (30116227302), we get a palindrome (50488488405).

The spelling of 20372261103 in words is "twenty billion, three hundred seventy-two million, two hundred sixty-one thousand, one hundred three".