421225361031 has 16 divisors (see below), whose sum is σ = 565759968768. Its totient is φ = 278757304800.

The previous prime is 421225361027. The next prime is 421225361057. The reversal of 421225361031 is 130163522124.

It is not a de Polignac number, because 421225361031 - 2² = 421225361027 is a prime.

It is a super-2 number, since 2×421225361031² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421225361031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421225361071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51886 + ... + 919316.

It is an arithmetic number, because the mean of its divisors is an integer number (35359998048).

Almost surely, 2^421225361031 is an apocalyptic number.

421225361031 is a deficient number, since it is larger than the sum of its proper divisors (144534607737).

421225361031 is a wasteful number, since it uses less digits than its factorization.

421225361031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868622.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 421225361031 its reverse (130163522124), we get a palindrome (551388883155).

The spelling of 421225361031 in words is "four hundred twenty-one billion, two hundred twenty-five million, three hundred sixty-one thousand, thirty-one".