1130121523 has 4 divisors (see below), whose sum is σ = 1166577088. Its totient is φ = 1093665960.

The previous prime is 1130121511. The next prime is 1130121527. The reversal of 1130121523 is 3251210311.

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 1130121523 - 2²⁹ = 593250611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1130121523.

It is not an unprimeable number, because it can be changed into a prime (1130121527) 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, 18227736 + ... + 18227797.

It is an arithmetic number, because the mean of its divisors is an integer number (291644272).

Almost surely, 2^1130121523 is an apocalyptic number.

1130121523 is a deficient number, since it is larger than the sum of its proper divisors (36455565).

1130121523 is an equidigital number, since it uses as much as digits as its factorization.

1130121523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36455564.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1130121523 is about 33617.2801249595. The cubic root of 1130121523 is about 1041.6177740152.

Adding to 1130121523 its reverse (3251210311), we get a palindrome (4381331834).

The spelling of 1130121523 in words is "one billion, one hundred thirty million, one hundred twenty-one thousand, five hundred twenty-three".