1203100000123 has 24 divisors (see below), whose sum is σ = 1403203347744. Its totient is φ = 1028519856000.

The previous prime is 1203100000079. The next prime is 1203100000127. The reversal of 1203100000123 is 3210000013021.

It is not a de Polignac number, because 1203100000123 - 2¹³ = 1203099991931 is a prime.

It is a super-2 number, since 2×1203100000123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203100000127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57114013 + ... + 57135073.

It is an arithmetic number, because the mean of its divisors is an integer number (58466806156).

Almost surely, 2^{1203100000123} is an apocalyptic number.

1203100000123 is a deficient number, since it is larger than the sum of its proper divisors (200103347621).

1203100000123 is a wasteful number, since it uses less digits than its factorization.

1203100000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24083 (or 24076 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1203100000123 its reverse (3210000013021), we get a palindrome (4413100013144).

The spelling of 1203100000123 in words is "one trillion, two hundred three billion, one hundred million, one hundred twenty-three", and thus it is an aban number.