11522430151231 has 4 divisors (see below), whose sum is σ = 11894121446464. Its totient is φ = 11150738856000.

The previous prime is 11522430151163. The next prime is 11522430151237. The reversal of 11522430151231 is 13215103422511.

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 11522430151231 - 2²¹ = 11522428054079 is a prime.

It is a super-2 number, since 2×11522430151231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 371691295201 = 11522430151231 / (1 + 1 + 5 + 2 + 2 + 4 + 3 + 0 + 1 + 5 + 1 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11522430151193 and 11522430151202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522430151237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185845647570 + ... + 185845647631.

It is an arithmetic number, because the mean of its divisors is an integer number (2973530361616).

Almost surely, 2^{11522430151231} is an apocalyptic number.

11522430151231 is a deficient number, since it is larger than the sum of its proper divisors (371691295233).

11522430151231 is an equidigital number, since it uses as much as digits as its factorization.

11522430151231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371691295232.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 11522430151231 its reverse (13215103422511), we get a palindrome (24737533573742).

The spelling of 11522430151231 in words is "eleven trillion, five hundred twenty-two billion, four hundred thirty million, one hundred fifty-one thousand, two hundred thirty-one".