123011203102 has 32 divisors (see below), whose sum is σ = 190010513952. Its totient is φ = 59702759424.

The previous prime is 123011203099. The next prime is 123011203103. The reversal of 123011203102 is 201302110321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011203103) 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, 11899528 + ... + 11909860.

It is an arithmetic number, because the mean of its divisors is an integer number (5937828561).

Almost surely, 2^123011203102 is an apocalyptic number.

123011203102 is a deficient number, since it is larger than the sum of its proper divisors (66999310850).

123011203102 is a wasteful number, since it uses less digits than its factorization.

123011203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11692.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 123011203102 its reverse (201302110321), we get a palindrome (324313313423).

The spelling of 123011203102 in words is "one hundred twenty-three billion, eleven million, two hundred three thousand, one hundred two".