123951371 has 2 divisors, whose sum is σ = 123951372. Its totient is φ = 123951370.

The previous prime is 123951337. The next prime is 123951379. The reversal of 123951371 is 173159321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123951371 - 2¹⁰ = 123950347 is a prime.

It is equal to p_7053863 and since 123951371 and 7053863 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123951379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61975685 + 61975686.

It is an arithmetic number, because the mean of its divisors is an integer number (61975686).

Almost surely, 2^123951371 is an apocalyptic number.

123951371 is a deficient number, since it is larger than the sum of its proper divisors (1).

123951371 is an equidigital number, since it uses as much as digits as its factorization.

123951371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 32.

The square root of 123951371 is about 11133.3450049839. The cubic root of 123951371 is about 498.5978999058.

The spelling of 123951371 in words is "one hundred twenty-three million, nine hundred fifty-one thousand, three hundred seventy-one".