123931270 has 16 divisors (see below), whose sum is σ = 226858320. Its totient is φ = 48732064.

The previous prime is 123931267. The next prime is 123931277. The reversal of 123931270 is 72139321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123931277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104437 + ... + 105616.

It is an arithmetic number, because the mean of its divisors is an integer number (14178645).

Almost surely, 2^123931270 is an apocalyptic number.

123931270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123931270 is a deficient number, since it is larger than the sum of its proper divisors (102927050).

123931270 is a wasteful number, since it uses less digits than its factorization.

123931270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210119.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 123931270 is about 11132.4422298074. The cubic root of 123931270 is about 498.5709461682.

The spelling of 123931270 in words is "one hundred twenty-three million, nine hundred thirty-one thousand, two hundred seventy".