123033032421 has 48 divisors (see below), whose sum is σ = 187469006400. Its totient is φ = 71541190656.

The previous prime is 123033032401. The next prime is 123033032461. The reversal of 123033032421 is 124230330321.

It is not a de Polignac number, because 123033032421 - 2²⁷ = 122898814693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123033032391 and 123033032400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033032401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3730821 + ... + 3763653.

It is an arithmetic number, because the mean of its divisors is an integer number (3905604300).

Almost surely, 2^123033032421 is an apocalyptic number.

It is an amenable number.

123033032421 is a deficient number, since it is larger than the sum of its proper divisors (64435973979).

123033032421 is a wasteful number, since it uses less digits than its factorization.

123033032421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33270 (or 33257 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 123033032421 its reverse (124230330321), we get a palindrome (247263362742).

The spelling of 123033032421 in words is "one hundred twenty-three billion, thirty-three million, thirty-two thousand, four hundred twenty-one".