1322120131 has 4 divisors (see below), whose sum is σ = 1322196264. Its totient is φ = 1322044000.

The previous prime is 1322120123. The next prime is 1322120143. The reversal of 1322120131 is 1310212231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1322120131 - 2³ = 1322120123 is a prime.

It is a super-2 number, since 2×1322120131² = 3496003281590914322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322120171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136 + ... + 51466.

It is an arithmetic number, because the mean of its divisors is an integer number (330549066).

Almost surely, 2^1322120131 is an apocalyptic number.

1322120131 is a deficient number, since it is larger than the sum of its proper divisors (76133).

1322120131 is an equidigital number, since it uses as much as digits as its factorization.

1322120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76132.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1322120131 is about 36360.9698853042. The cubic root of 1322120131 is about 1097.5482947392.

Adding to 1322120131 its reverse (1310212231), we get a palindrome (2632332362).

The spelling of 1322120131 in words is "one billion, three hundred twenty-two million, one hundred twenty thousand, one hundred thirty-one".