30231541131553 has 2 divisors, whose sum is σ = 30231541131554. Its totient is φ = 30231541131552.

The previous prime is 30231541131509. The next prime is 30231541131557. The reversal of 30231541131553 is 35513114513203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29212111661329 + 1019429470224 = 5404823^2 + 1009668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231541131553 is a prime.

It is not a weakly prime, because it can be changed into another prime (30231541131557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115770565776 + 15115770565777.

It is an arithmetic number, because the mean of its divisors is an integer number (15115770565777).

Almost surely, 2^{30231541131553} is an apocalyptic number.

It is an amenable number.

30231541131553 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231541131553 is an equidigital number, since it uses as much as digits as its factorization.

30231541131553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 30231541131553 its reverse (35513114513203), we get a palindrome (65744655644756).

The spelling of 30231541131553 in words is "thirty trillion, two hundred thirty-one billion, five hundred forty-one million, one hundred thirty-one thousand, five hundred fifty-three".