131402230311322 has 4 divisors (see below), whose sum is σ = 197103345466986. Its totient is φ = 65701115155660.

The previous prime is 131402230311311. The next prime is 131402230311323. The reversal of 131402230311322 is 223113032204131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 109107864411841 + 22294365899481 = 10445471^2 + 4721691^2 .

It is a super-2 number, since 2×131402230311322² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131402230311323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32850557577829 + ... + 32850557577832.

Almost surely, 2^{131402230311322} is an apocalyptic number.

131402230311322 is a deficient number, since it is larger than the sum of its proper divisors (65701115155664).

131402230311322 is an equidigital number, since it uses as much as digits as its factorization.

131402230311322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65701115155663.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 131402230311322 its reverse (223113032204131), we get a palindrome (354515262515453).

The spelling of 131402230311322 in words is "one hundred thirty-one trillion, four hundred two billion, two hundred thirty million, three hundred eleven thousand, three hundred twenty-two".