102001113123 has 32 divisors (see below), whose sum is σ = 167462270976. Its totient is φ = 53778411648.

The previous prime is 102001113101. The next prime is 102001113131. The reversal of 102001113123 is 321311100201.

It is a happy number.

It is not a de Polignac number, because 102001113123 - 2⁸ = 102001112867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102001113133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527190 + ... + 694212.

It is an arithmetic number, because the mean of its divisors is an integer number (5233195968).

Almost surely, 2^102001113123 is an apocalyptic number.

102001113123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102001113123 is a deficient number, since it is larger than the sum of its proper divisors (65461157853).

102001113123 is a wasteful number, since it uses less digits than its factorization.

102001113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169283.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 102001113123 its reverse (321311100201), we get a palindrome (423312213324).

The spelling of 102001113123 in words is "one hundred two billion, one million, one hundred thirteen thousand, one hundred twenty-three".