421022440031 has 8 divisors (see below), whose sum is σ = 422984081520. Its totient is φ = 419061869568.

The previous prime is 421022440009. The next prime is 421022440051. The reversal of 421022440031 is 130044220124.

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

It is a cyclic number.

It is not a de Polignac number, because 421022440031 - 2³⁰ = 419948698207 is a prime.

It is a super-2 number, since 2×421022440031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421022439979 and 421022440006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421022440001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525740 + ... + 1057566.

It is an arithmetic number, because the mean of its divisors is an integer number (52873010190).

Almost surely, 2^421022440031 is an apocalyptic number.

421022440031 is a deficient number, since it is larger than the sum of its proper divisors (1961641489).

421022440031 is a wasteful number, since it uses less digits than its factorization.

421022440031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535513.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 421022440031 its reverse (130044220124), we get a palindrome (551066660155).

The spelling of 421022440031 in words is "four hundred twenty-one billion, twenty-two million, four hundred forty thousand, thirty-one".