123261653106 has 24 divisors (see below), whose sum is σ = 267376412160. Its totient is φ = 41039602776.

The previous prime is 123261653101. The next prime is 123261653131. The reversal of 123261653106 is 601356162321.

123261653106 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 616 + 5 + 31 + 0 + 6 = 666.

123261653106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123261653101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3951946 + ... + 3983013.

It is an arithmetic number, because the mean of its divisors is an integer number (11140683840).

Almost surely, 2^123261653106 is an apocalyptic number.

123261653106 is an abundant number, since it is smaller than the sum of its proper divisors (144114759054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123261653106 is a wasteful number, since it uses less digits than its factorization.

123261653106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7935830 (or 7935827 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 123261653106 in words is "one hundred twenty-three billion, two hundred sixty-one million, six hundred fifty-three thousand, one hundred six".