401232123 has 28 divisors (see below), whose sum is σ = 603440928. Its totient is φ = 266658480.

The previous prime is 401232119. The next prime is 401232127. The reversal of 401232123 is 321232104.

It is an interprime number because it is at equal distance from previous prime (401232119) and next prime (401232127).

It is not a de Polignac number, because 401232123 - 2² = 401232119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401232096 and 401232105.

It is not an unprimeable number, because it can be changed into a prime (401232127) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 313561 + ... + 314837.

Almost surely, 2^401232123 is an apocalyptic number.

401232123 is a deficient number, since it is larger than the sum of its proper divisors (202208805).

401232123 is an equidigital number, since it uses as much as digits as its factorization.

401232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 401232123 is about 20030.7793907277. The cubic root of 401232123 is about 737.5620542633.

Adding to 401232123 its reverse (321232104), we get a palindrome (722464227).

The spelling of 401232123 in words is "four hundred one million, two hundred thirty-two thousand, one hundred twenty-three".