1310231202122 has 4 divisors (see below), whose sum is σ = 1965346803186. Its totient is φ = 655115601060.

The previous prime is 1310231202089. The next prime is 1310231202127. The reversal of 1310231202122 is 2212021320131.

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

It can be written as a sum of positive squares in only one way, i.e., 1279163262001 + 31067940121 = 1131001^2 + 176261^2 .

It is a super-2 number, since 2×1310231202122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1310231202094 and 1310231202103.

It is not an unprimeable number, because it can be changed into a prime (1310231202127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327557800529 + ... + 327557800532.

Almost surely, 2^{1310231202122} is an apocalyptic number.

1310231202122 is a deficient number, since it is larger than the sum of its proper divisors (655115601064).

1310231202122 is an equidigital number, since it uses as much as digits as its factorization.

1310231202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655115601063.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1310231202122 its reverse (2212021320131), we get a palindrome (3522252522253).

The spelling of 1310231202122 in words is "one trillion, three hundred ten billion, two hundred thirty-one million, two hundred two thousand, one hundred twenty-two".