123021203108 has 12 divisors (see below), whose sum is σ = 222710798940. Its totient is φ = 59389546272.

The previous prime is 123021203099. The next prime is 123021203113. The reversal of 123021203108 is 801302120321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 93453712804 + 29567490304 = 305702^2 + 171952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530263691 + ... + 530263922.

It is an arithmetic number, because the mean of its divisors is an integer number (18559233245).

Almost surely, 2^123021203108 is an apocalyptic number.

It is an amenable number.

123021203108 is a deficient number, since it is larger than the sum of its proper divisors (99689595832).

123021203108 is a wasteful number, since it uses less digits than its factorization.

123021203108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060527646 (or 1060527644 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123021203108 its reverse (801302120321), we get a palindrome (924323323429).

The spelling of 123021203108 in words is "one hundred twenty-three billion, twenty-one million, two hundred three thousand, one hundred eight".