1131023301 has 4 divisors (see below), whose sum is σ = 1508031072. Its totient is φ = 754015532.

The previous prime is 1131023269. The next prime is 1131023323. The reversal of 1131023301 is 1033201311.

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 1131023301 - 2⁵ = 1131023269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131023381) 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, 188503881 + ... + 188503886.

It is an arithmetic number, because the mean of its divisors is an integer number (377007768).

Almost surely, 2^1131023301 is an apocalyptic number.

It is an amenable number.

1131023301 is a deficient number, since it is larger than the sum of its proper divisors (377007771).

1131023301 is an equidigital number, since it uses as much as digits as its factorization.

1131023301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377007770.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1131023301 is about 33630.6898680357. The cubic root of 1131023301 is about 1041.8947525657.

Adding to 1131023301 its reverse (1033201311), we get a palindrome (2164224612).

It can be divided in two parts, 113102 and 3301, that added together give a triangular number (116403 = T₄₈₂).

The spelling of 1131023301 in words is "one billion, one hundred thirty-one million, twenty-three thousand, three hundred one".