123114981 has 32 divisors (see below), whose sum is σ = 186310656. Its totient is φ = 71640000.

The previous prime is 123114961. The next prime is 123114983. The reversal of 123114981 is 189411321.

It is not a de Polignac number, because 123114981 - 2⁶ = 123114917 is a prime.

It is a super-2 number, since 2×123114981² = 30314597093260722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123114983) 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, 154075 + ... + 154871.

It is an arithmetic number, because the mean of its divisors is an integer number (5822208).

Almost surely, 2^123114981 is an apocalyptic number.

123114981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123114981 is a deficient number, since it is larger than the sum of its proper divisors (63195675).

123114981 is a wasteful number, since it uses less digits than its factorization.

123114981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993.

The product of its digits is 1728, while the sum is 30.

The square root of 123114981 is about 11095.7190393413. The cubic root of 123114981 is about 497.4739004683.

The spelling of 123114981 in words is "one hundred twenty-three million, one hundred fourteen thousand, nine hundred eighty-one".