1521103233131 has 2 divisors, whose sum is σ = 1521103233132. Its totient is φ = 1521103233130.

The previous prime is 1521103233127. The next prime is 1521103233179. The reversal of 1521103233131 is 1313323011251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1521103233131 - 2² = 1521103233127 is a prime.

It is a super-2 number, since 2×1521103233131² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1521103233131.

It is not a weakly prime, because it can be changed into another prime (1521103233101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760551616565 + 760551616566.

It is an arithmetic number, because the mean of its divisors is an integer number (760551616566).

Almost surely, 2^{1521103233131} is an apocalyptic number.

1521103233131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521103233131 is an equidigital number, since it uses as much as digits as its factorization.

1521103233131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 1521103233131 its reverse (1313323011251), we get a palindrome (2834426244382).

The spelling of 1521103233131 in words is "one trillion, five hundred twenty-one billion, one hundred three million, two hundred thirty-three thousand, one hundred thirty-one".