11555023211023 has 8 divisors (see below), whose sum is σ = 11567443120128. Its totient is φ = 11542603922304.

The previous prime is 11555023211003. The next prime is 11555023211059. The reversal of 11555023211023 is 32011232055511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11555023211023 - 2¹³ = 11555023202831 is a prime.

It is a super-2 number, since 2×11555023211023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555023211003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43775986 + ... + 44039152.

It is an arithmetic number, because the mean of its divisors is an integer number (1445930390016).

Almost surely, 2^{11555023211023} is an apocalyptic number.

11555023211023 is a deficient number, since it is larger than the sum of its proper divisors (12419909105).

11555023211023 is an equidigital number, since it uses as much as digits as its factorization.

11555023211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310193.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 11555023211023 its reverse (32011232055511), we get a palindrome (43566255266534).

The spelling of 11555023211023 in words is "eleven trillion, five hundred fifty-five billion, twenty-three million, two hundred eleven thousand, twenty-three".