123151403 has 2 divisors, whose sum is σ = 123151404. Its totient is φ = 123151402.

The previous prime is 123151381. The next prime is 123151409. The reversal of 123151403 is 304151321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123151403 - 2⁶ = 123151339 is a prime.

It is not a weakly prime, because it can be changed into another prime (123151409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61575701 + 61575702.

It is an arithmetic number, because the mean of its divisors is an integer number (61575702).

Almost surely, 2^123151403 is an apocalyptic number.

123151403 is a deficient number, since it is larger than the sum of its proper divisors (1).

123151403 is an equidigital number, since it uses as much as digits as its factorization.

123151403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 123151403 is about 11097.3601815927. The cubic root of 123151403 is about 497.5229527385.

The spelling of 123151403 in words is "one hundred twenty-three million, one hundred fifty-one thousand, four hundred three".