131401222420433 has 12 divisors (see below), whose sum is σ = 156582641353572. Its totient is φ = 109882555332480.

The previous prime is 131401222420421. The next prime is 131401222420439. The reversal of 131401222420433 is 334024222104131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8634999700369 + 122766222720064 = 2938537^2 + 11079992^2 .

It is not a de Polignac number, because 131401222420433 - 2¹⁸ = 131401222158289 is a prime.

It is a super-3 number, since 3×131401222420433³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131401222420433.

It is not an unprimeable number, because it can be changed into a prime (131401222420439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32703139460 + ... + 32703143477.

It is an arithmetic number, because the mean of its divisors is an integer number (13048553446131).

Almost surely, 2^{131401222420433} is an apocalyptic number.

It is an amenable number.

131401222420433 is a deficient number, since it is larger than the sum of its proper divisors (25181418933139).

131401222420433 is an equidigital number, since it uses as much as digits as its factorization.

131401222420433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65406282992 (or 65406282985 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 131401222420433 its reverse (334024222104131), we get a palindrome (465425444524564).

The spelling of 131401222420433 in words is "one hundred thirty-one trillion, four hundred one billion, two hundred twenty-two million, four hundred twenty thousand, four hundred thirty-three".