421423022031 has 8 divisors (see below), whose sum is σ = 612978941184. Its totient is φ = 255407892120.

The previous prime is 421423022029. The next prime is 421423022039. The reversal of 421423022031 is 130220324124.

It is a happy number.

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

It is not a de Polignac number, because 421423022031 - 2¹ = 421423022029 is a prime.

It is a super-2 number, since 2×421423022031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421423021992 and 421423022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421423022039) 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, 6385197271 + ... + 6385197336.

It is an arithmetic number, because the mean of its divisors is an integer number (76622367648).

Almost surely, 2^421423022031 is an apocalyptic number.

421423022031 is a deficient number, since it is larger than the sum of its proper divisors (191555919153).

421423022031 is a wasteful number, since it uses less digits than its factorization.

421423022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12770394621.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 421423022031 its reverse (130220324124), we get a palindrome (551643346155).

The spelling of 421423022031 in words is "four hundred twenty-one billion, four hundred twenty-three million, twenty-two thousand, thirty-one".