120102351123 has 4 divisors (see below), whose sum is σ = 160136468168. Its totient is φ = 80068234080.

The previous prime is 120102351067. The next prime is 120102351137. The reversal of 120102351123 is 321153201021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120102351123 - 2²⁰ = 120101302547 is a prime.

It is a super-2 number, since 2×120102351123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120102351123.

It is not an unprimeable number, because it can be changed into a prime (120102351143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20017058518 + ... + 20017058523.

It is an arithmetic number, because the mean of its divisors is an integer number (40034117042).

Almost surely, 2^120102351123 is an apocalyptic number.

120102351123 is a deficient number, since it is larger than the sum of its proper divisors (40034117045).

120102351123 is an equidigital number, since it uses as much as digits as its factorization.

120102351123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40034117044.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 120102351123 its reverse (321153201021), we get a palindrome (441255552144).

The spelling of 120102351123 in words is "one hundred twenty billion, one hundred two million, three hundred fifty-one thousand, one hundred twenty-three".