421031430123 has 8 divisors (see below), whose sum is σ = 561379393488. Its totient is φ = 280685543424.

The previous prime is 421031430103. The next prime is 421031430143. The reversal of 421031430123 is 321034130124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421031430103) and next prime (421031430143).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421031430123 - 2⁸ = 421031429867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421031430093 and 421031430102.

It is not an unprimeable number, because it can be changed into a prime (421031430103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39915 + ... + 918507.

It is an arithmetic number, because the mean of its divisors is an integer number (70172424186).

Almost surely, 2^421031430123 is an apocalyptic number.

421031430123 is a deficient number, since it is larger than the sum of its proper divisors (140347963365).

421031430123 is a wasteful number, since it uses less digits than its factorization.

421031430123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038333.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 421031430123 its reverse (321034130124), we get a palindrome (742065560247).

The spelling of 421031430123 in words is "four hundred twenty-one billion, thirty-one million, four hundred thirty thousand, one hundred twenty-three".