11612231573 has 4 divisors (see below), whose sum is σ = 11655081408. Its totient is φ = 11569381740.

The previous prime is 11612231551. The next prime is 11612231597. The reversal of 11612231573 is 37513221611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11612231573 - 2¹² = 11612227477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612231173) 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, 21424511 + ... + 21425052.

It is an arithmetic number, because the mean of its divisors is an integer number (2913770352).

Almost surely, 2^11612231573 is an apocalyptic number.

It is an amenable number.

11612231573 is a deficient number, since it is larger than the sum of its proper divisors (42849835).

11612231573 is an equidigital number, since it uses as much as digits as its factorization.

11612231573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42849834.

The product of its digits is 7560, while the sum is 32.

The spelling of 11612231573 in words is "eleven billion, six hundred twelve million, two hundred thirty-one thousand, five hundred seventy-three".