123894031 has 8 divisors (see below), whose sum is σ = 129428064. Its totient is φ = 118372320.

The previous prime is 123894007. The next prime is 123894047. The reversal of 123894031 is 130498321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123894031 - 2⁵ = 123893999 is a prime.

It is a super-2 number, since 2×123894031² = 30699461834857922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123893984 and 123894002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123894091) 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, 21865 + ... + 26941.

It is an arithmetic number, because the mean of its divisors is an integer number (16178508).

Almost surely, 2^123894031 is an apocalyptic number.

123894031 is a deficient number, since it is larger than the sum of its proper divisors (5534033).

123894031 is a wasteful number, since it uses less digits than its factorization.

123894031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 123894031 is about 11130.7695600978. The cubic root of 123894031 is about 498.5210041227.

The spelling of 123894031 in words is "one hundred twenty-three million, eight hundred ninety-four thousand, thirty-one".