1133231121251 has 8 divisors (see below), whose sum is σ = 1170213825408. Its totient is φ = 1096275096000.

The previous prime is 1133231121193. The next prime is 1133231121263. The reversal of 1133231121251 is 1521211323311.

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 1133231121251 - 2³⁰ = 1132157379427 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 1133231121251.

It is not an unprimeable number, because it can be changed into a prime (1133231121271) 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, 6583370 + ... + 6753311.

It is an arithmetic number, because the mean of its divisors is an integer number (146276728176).

Almost surely, 2^{1133231121251} is an apocalyptic number.

1133231121251 is a deficient number, since it is larger than the sum of its proper divisors (36982704157).

1133231121251 is a wasteful number, since it uses less digits than its factorization.

1133231121251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339453.

The product of its digits is 1080, while the sum is 26.

Adding to 1133231121251 its reverse (1521211323311), we get a palindrome (2654442444562).

The spelling of 1133231121251 in words is "one trillion, one hundred thirty-three billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred fifty-one".