101202045123 has 4 divisors (see below), whose sum is σ = 134936060168. Its totient is φ = 67468030080.

The previous prime is 101202045103. The next prime is 101202045173. The reversal of 101202045123 is 321540202101.

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

It is not a de Polignac number, because 101202045123 - 2¹² = 101202041027 is a prime.

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 101202045123.

It is not an unprimeable number, because it can be changed into a prime (101202045103) 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, 16867007518 + ... + 16867007523.

It is an arithmetic number, because the mean of its divisors is an integer number (33734015042).

Almost surely, 2^101202045123 is an apocalyptic number.

101202045123 is a deficient number, since it is larger than the sum of its proper divisors (33734015045).

101202045123 is an equidigital number, since it uses as much as digits as its factorization.

101202045123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33734015044.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 101202045123 its reverse (321540202101), we get a palindrome (422742247224).

The spelling of 101202045123 in words is "one hundred one billion, two hundred two million, forty-five thousand, one hundred twenty-three".