1131232321019 has 16 divisors (see below), whose sum is σ = 1206907900416. Its totient is φ = 1056597964800.

The previous prime is 1131232320997. The next prime is 1131232321027. The reversal of 1131232321019 is 9101232321311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131232321019 is a prime.

It is a super-2 number, since 2×1131232321019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131232320982 and 1131232321000.

It is not an unprimeable number, because it can be changed into a prime (1131232321039) 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, 953219 + ... + 1780755.

It is an arithmetic number, because the mean of its divisors is an integer number (75431743776).

Almost surely, 2^{1131232321019} is an apocalyptic number.

1131232321019 is a deficient number, since it is larger than the sum of its proper divisors (75675579397).

1131232321019 is a wasteful number, since it uses less digits than its factorization.

1131232321019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828166.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 1131232321019 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, nineteen".