12601020123 has 16 divisors (see below), whose sum is σ = 18690097440. Its totient is φ = 8390816352.

The previous prime is 12601020043. The next prime is 12601020127. The reversal of 12601020123 is 32102010621.

It is not a de Polignac number, because 12601020123 - 2¹⁴ = 12601003739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12601020096 and 12601020105.

It is not an unprimeable number, because it can be changed into a prime (12601020127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250536 + ... + 296597.

It is an arithmetic number, because the mean of its divisors is an integer number (1168131090).

Almost surely, 2^12601020123 is an apocalyptic number.

12601020123 is a deficient number, since it is larger than the sum of its proper divisors (6089077317).

12601020123 is an equidigital number, since it uses as much as digits as its factorization.

12601020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547995 (or 547989 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12601020123 its reverse (32102010621), we get a palindrome (44703030744).

The spelling of 12601020123 in words is "twelve billion, six hundred one million, twenty thousand, one hundred twenty-three".