131420133433 has 4 divisors (see below), whose sum is σ = 135659492608. Its totient is φ = 127180774260.

The previous prime is 131420133409. The next prime is 131420133461. The reversal of 131420133433 is 334331024131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334331024131 = 13 ⋅25717771087.

It is a cyclic number.

It is not a de Polignac number, because 131420133433 - 2⁵ = 131420133401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131420133133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119679541 + ... + 2119679602.

It is an arithmetic number, because the mean of its divisors is an integer number (33914873152).

Almost surely, 2^131420133433 is an apocalyptic number.

It is an amenable number.

131420133433 is a deficient number, since it is larger than the sum of its proper divisors (4239359175).

131420133433 is an equidigital number, since it uses as much as digits as its factorization.

131420133433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239359174.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 131420133433 its reverse (334331024131), we get a palindrome (465751157564).

The spelling of 131420133433 in words is "one hundred thirty-one billion, four hundred twenty million, one hundred thirty-three thousand, four hundred thirty-three".