1131245444321 has 8 divisors (see below), whose sum is σ = 1148147398080. Its totient is φ = 1114344011088.

The previous prime is 1131245444299. The next prime is 1131245444333. The reversal of 1131245444321 is 1234445421311.

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 1131245444321 - 2⁶ = 1131245444257 is a prime.

It is a super-2 number, since 2×1131245444321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131245444621) 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, 8218100 + ... + 8354618.

It is an arithmetic number, because the mean of its divisors is an integer number (143518424760).

Almost surely, 2^{1131245444321} is an apocalyptic number.

It is an amenable number.

1131245444321 is a deficient number, since it is larger than the sum of its proper divisors (16901953759).

1131245444321 is a wasteful number, since it uses less digits than its factorization.

1131245444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260263.

The product of its digits is 46080, while the sum is 35.

The spelling of 1131245444321 in words is "one trillion, one hundred thirty-one billion, two hundred forty-five million, four hundred forty-four thousand, three hundred twenty-one".