131000030304433 has 2 divisors, whose sum is σ = 131000030304434. Its totient is φ = 131000030304432.

The previous prime is 131000030304389. The next prime is 131000030304601. The reversal of 131000030304433 is 334403030000131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117140619215104 + 13859411089329 = 10823152^2 + 3722823^2 .

It is a cyclic number.

It is not a de Polignac number, because 131000030304433 - 2⁴¹ = 128801007048881 is a prime.

It is a super-2 number, since 2×131000030304433² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131000030304398 and 131000030304407.

It is not a weakly prime, because it can be changed into another prime (131000030301433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500015152216 + 65500015152217.

It is an arithmetic number, because the mean of its divisors is an integer number (65500015152217).

Almost surely, 2^{131000030304433} is an apocalyptic number.

It is an amenable number.

131000030304433 is a deficient number, since it is larger than the sum of its proper divisors (1).

131000030304433 is an equidigital number, since it uses as much as digits as its factorization.

131000030304433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 131000030304433 its reverse (334403030000131), we get a palindrome (465403060304564).

The spelling of 131000030304433 in words is "one hundred thirty-one trillion, thirty million, three hundred four thousand, four hundred thirty-three".