451401222031 has 2 divisors, whose sum is σ = 451401222032. Its totient is φ = 451401222030.

The previous prime is 451401221939. The next prime is 451401222079. The reversal of 451401222031 is 130222104154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451401222031 - 2²¹ = 451399124879 is a prime.

It is a super-2 number, since 2×451401222031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451401221987 and 451401222005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451401222631) 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 as a sum of consecutive naturals, namely, 225700611015 + 225700611016.

It is an arithmetic number, because the mean of its divisors is an integer number (225700611016).

Almost surely, 2^451401222031 is an apocalyptic number.

451401222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

451401222031 is an equidigital number, since it uses as much as digits as its factorization.

451401222031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 451401222031 its reverse (130222104154), we get a palindrome (581623326185).

The spelling of 451401222031 in words is "four hundred fifty-one billion, four hundred one million, two hundred twenty-two thousand, thirty-one".