401421010031 has 2 divisors, whose sum is σ = 401421010032. Its totient is φ = 401421010030.

The previous prime is 401421009973. The next prime is 401421010037. The reversal of 401421010031 is 130010124104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401421010031 - 2⁶ = 401421009967 is a prime.

It is a super-2 number, since 2×401421010031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401421009991 and 401421010009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401421010037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200710505015 + 200710505016.

It is an arithmetic number, because the mean of its divisors is an integer number (200710505016).

Almost surely, 2^401421010031 is an apocalyptic number.

401421010031 is a deficient number, since it is larger than the sum of its proper divisors (1).

401421010031 is an equidigital number, since it uses as much as digits as its factorization.

401421010031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 401421010031 its reverse (130010124104), we get a palindrome (531431134135).

The spelling of 401421010031 in words is "four hundred one billion, four hundred twenty-one million, ten thousand, thirty-one".