401423240012131 has 2 divisors, whose sum is σ = 401423240012132. Its totient is φ = 401423240012130.

The previous prime is 401423240012129. The next prime is 401423240012143. The reversal of 401423240012131 is 131210042324104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401423240012131 - 2¹ = 401423240012129 is a prime.

It is a super-2 number, since 2×401423240012131² (a number of 30 digits) contains 22 as substring.

Together with 401423240012129, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 401423240012131.

It is not a weakly prime, because it can be changed into another prime (401423240012161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200711620006065 + 200711620006066.

It is an arithmetic number, because the mean of its divisors is an integer number (200711620006066).

Almost surely, 2^{401423240012131} is an apocalyptic number.

401423240012131 is a deficient number, since it is larger than the sum of its proper divisors (1).

401423240012131 is an equidigital number, since it uses as much as digits as its factorization.

401423240012131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 401423240012131 its reverse (131210042324104), we get a palindrome (532633282336235).

The spelling of 401423240012131 in words is "four hundred one trillion, four hundred twenty-three billion, two hundred forty million, twelve thousand, one hundred thirty-one".