1320311132019 has 64 divisors (see below), whose sum is σ = 2266063188480. Its totient is φ = 750882908160.

The previous prime is 1320311132003. The next prime is 1320311132047. The reversal of 1320311132019 is 9102311130231.

1320311132019 is a `hidden beast` number, since 1 + 3 + 20 + 311 + 1 + 320 + 1 + 9 = 666.

It is not a de Polignac number, because 1320311132019 - 2⁴ = 1320311132003 is a prime.

It is a super-2 number, since 2×1320311132019² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1320311131983 and 1320311132001.

It is not an unprimeable number, because it can be changed into a prime (1320311132069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1313532 + ... + 2089494.

It is an arithmetic number, because the mean of its divisors is an integer number (35407237320).

Almost surely, 2^{1320311132019} is an apocalyptic number.

1320311132019 is a deficient number, since it is larger than the sum of its proper divisors (945752056461).

1320311132019 is a wasteful number, since it uses less digits than its factorization.

1320311132019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776337 (or 776331 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The spelling of 1320311132019 in words is "one trillion, three hundred twenty billion, three hundred eleven million, one hundred thirty-two thousand, nineteen".