245131100123 has 32 divisors (see below), whose sum is σ = 305033035776. Its totient is φ = 191814594048.

The previous prime is 245131100117. The next prime is 245131100129. The reversal of 245131100123 is 321001131542.

It is an interprime number because it is at equal distance from previous prime (245131100117) and next prime (245131100129).

It is not a de Polignac number, because 245131100123 - 2⁸ = 245131099867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245131100129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4735286 + ... + 4786772.

It is an arithmetic number, because the mean of its divisors is an integer number (9532282368).

Almost surely, 2^245131100123 is an apocalyptic number.

245131100123 is a deficient number, since it is larger than the sum of its proper divisors (59901935653).

245131100123 is a wasteful number, since it uses less digits than its factorization.

245131100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52083.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 245131100123 its reverse (321001131542), we get a palindrome (566132231665).

The spelling of 245131100123 in words is "two hundred forty-five billion, one hundred thirty-one million, one hundred thousand, one hundred twenty-three".