1321132121031 has 8 divisors (see below), whose sum is σ = 1772316302080. Its totient is φ = 875351343672.

The previous prime is 1321132121027. The next prime is 1321132121039. The reversal of 1321132121031 is 1301212311231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321132121031 - 2² = 1321132121027 is a prime.

It is a super-2 number, since 2×1321132121031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321132120989 and 1321132121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321132121039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350850351 + ... + 1350851328.

It is an arithmetic number, because the mean of its divisors is an integer number (221539537760).

Almost surely, 2^{1321132121031} is an apocalyptic number.

1321132121031 is a deficient number, since it is larger than the sum of its proper divisors (451184181049).

1321132121031 is a wasteful number, since it uses less digits than its factorization.

1321132121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701701845.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1321132121031 its reverse (1301212311231), we get a palindrome (2622344432262).

The spelling of 1321132121031 in words is "one trillion, three hundred twenty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, thirty-one".