1134123521521 has 16 divisors (see below), whose sum is σ = 1247222275200. Its totient is φ = 1026478303488.

The previous prime is 1134123521501. The next prime is 1134123521543. The reversal of 1134123521521 is 1251253214311.

It is not a de Polignac number, because 1134123521521 - 2⁷ = 1134123521393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134123521501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1203016 + ... + 1927561.

It is an arithmetic number, because the mean of its divisors is an integer number (77951392200).

Almost surely, 2^{1134123521521} is an apocalyptic number.

It is an amenable number.

1134123521521 is a deficient number, since it is larger than the sum of its proper divisors (113098753679).

1134123521521 is a wasteful number, since it uses less digits than its factorization.

1134123521521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131448.

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

Adding to 1134123521521 its reverse (1251253214311), we get a palindrome (2385376735832).

The spelling of 1134123521521 in words is "one trillion, one hundred thirty-four billion, one hundred twenty-three million, five hundred twenty-one thousand, five hundred twenty-one".