1320022131 has 24 divisors (see below), whose sum is σ = 1883810304. Its totient is φ = 821908080.

The previous prime is 1320022117. The next prime is 1320022133. The reversal of 1320022131 is 1312200231.

It is not a de Polignac number, because 1320022131 - 2¹³ = 1320013939 is a prime.

It is a super-2 number, since 2×1320022131² = 3484916852659562322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1320022131.

It is not an unprimeable number, because it can be changed into a prime (1320022133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68310 + ... + 85476.

It is an arithmetic number, because the mean of its divisors is an integer number (78492096).

Almost surely, 2^1320022131 is an apocalyptic number.

1320022131 is a deficient number, since it is larger than the sum of its proper divisors (563788173).

1320022131 is a wasteful number, since it uses less digits than its factorization.

1320022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17279 (or 17260 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1320022131 is about 36332.1088157569. The cubic root of 1320022131 is about 1096.9674409701.

Adding to 1320022131 its reverse (1312200231), we get a palindrome (2632222362).

The spelling of 1320022131 in words is "one billion, three hundred twenty million, twenty-two thousand, one hundred thirty-one".