123881007 has 32 divisors (see below), whose sum is σ = 177971200. Its totient is φ = 76422528.

The previous prime is 123881003. The next prime is 123881027. The reversal of 123881007 is 700188321.

It is a happy number.

It is not a de Polignac number, because 123881007 - 2² = 123881003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123881003) 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, 788973 + ... + 789129.

It is an arithmetic number, because the mean of its divisors is an integer number (5561600).

Almost surely, 2^123881007 is an apocalyptic number.

123881007 is a deficient number, since it is larger than the sum of its proper divisors (54090193).

123881007 is a wasteful number, since it uses less digits than its factorization.

123881007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 123881007 is about 11130.1844998185. The cubic root of 123881007 is about 498.5035349865.

The spelling of 123881007 in words is "one hundred twenty-three million, eight hundred eighty-one thousand, seven".