23131220303103 has 12 divisors (see below), whose sum is σ = 33900300830424. Its totient is φ = 14018921395600.

The previous prime is 23131220303083. The next prime is 23131220303143. The reversal of 23131220303103 is 30130302213132.

It is not a de Polignac number, because 23131220303103 - 2⁶ = 23131220303039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131220303143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31861184628 + ... + 31861185353.

It is an arithmetic number, because the mean of its divisors is an integer number (2825025069202).

Almost surely, 2^{23131220303103} is an apocalyptic number.

23131220303103 is a deficient number, since it is larger than the sum of its proper divisors (10769080527321).

23131220303103 is a wasteful number, since it uses less digits than its factorization.

23131220303103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63722370006 (or 63722369995 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 23131220303103 its reverse (30130302213132), we get a palindrome (53261522516235).

The spelling of 23131220303103 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twenty million, three hundred three thousand, one hundred three".