123011221033012 has 48 divisors (see below), whose sum is σ = 238293725663952. Its totient is φ = 55200624491520.

The previous prime is 123011221032983. The next prime is 123011221033027. The reversal of 123011221033012 is 210330122110321.

It can be written as a sum of positive squares in 8 ways, for example, as 3722098167076 + 119289122865936 = 1929274^2 + 10921956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97835343 + ... + 99084694.

It is an arithmetic number, because the mean of its divisors is an integer number (4964452617999).

Almost surely, 2^{123011221033012} is an apocalyptic number.

It is an amenable number.

123011221033012 is a deficient number, since it is larger than the sum of its proper divisors (115282504630940).

123011221033012 is a wasteful number, since it uses less digits than its factorization.

123011221033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196920388 (or 196920386 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 123011221033012 its reverse (210330122110321), we get a palindrome (333341343143333).

The spelling of 123011221033012 in words is "one hundred twenty-three trillion, eleven billion, two hundred twenty-one million, thirty-three thousand, twelve".