1310220131 has 4 divisors (see below), whose sum is σ = 1429331064. Its totient is φ = 1191109200.

The previous prime is 1310220127. The next prime is 1310220137.

1310220131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1310220131 - 2² = 1310220127 is a prime.

It is a super-2 number, since 2×1310220131² = 3433353583355314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310220137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59555450 + ... + 59555471.

It is an arithmetic number, because the mean of its divisors is an integer number (357332766).

Almost surely, 2^1310220131 is an apocalyptic number.

1310220131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1310220131 is a deficient number, since it is larger than the sum of its proper divisors (119110933).

1310220131 is a wasteful number, since it uses less digits than its factorization.

1310220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119110932.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1310220131 is about 36196.9630079652. The cubic root of 1310220131 is about 1094.2454664444.

It can be divided in two parts, 13102 and 20131, that added together give a palindrome (33233).

The spelling of 1310220131 in words is "one billion, three hundred ten million, two hundred twenty thousand, one hundred thirty-one".