1523322530131 has 4 divisors (see below), whose sum is σ = 1527712508952. Its totient is φ = 1518932551312.

The previous prime is 1523322530129. The next prime is 1523322530183. The reversal of 1523322530131 is 1310352233251.

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

It is a cyclic number.

It is not a de Polignac number, because 1523322530131 - 2¹ = 1523322530129 is a prime.

It is a super-2 number, since 2×1523322530131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1523322530093 and 1523322530102.

It is not an unprimeable number, because it can be changed into a prime (1523322530111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2194988890 + ... + 2194989583.

It is an arithmetic number, because the mean of its divisors is an integer number (381928127238).

Almost surely, 2^{1523322530131} is an apocalyptic number.

1523322530131 is a deficient number, since it is larger than the sum of its proper divisors (4389978821).

1523322530131 is an equidigital number, since it uses as much as digits as its factorization.

1523322530131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389978820.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 1523322530131 its reverse (1310352233251), we get a palindrome (2833674763382).

The spelling of 1523322530131 in words is "one trillion, five hundred twenty-three billion, three hundred twenty-two million, five hundred thirty thousand, one hundred thirty-one".