1320213002331 has 32 divisors (see below), whose sum is σ = 1781671385088. Its totient is φ = 869483289600.

The previous prime is 1320213002299. The next prime is 1320213002347. The reversal of 1320213002331 is 1332003120231.

It is not a de Polignac number, because 1320213002331 - 2⁵ = 1320213002299 is a prime.

It is a super-2 number, since 2×1320213002331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320213002298 and 1320213002307.

It is not an unprimeable number, because it can be changed into a prime (1320213006331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694482481 + ... + 694484381.

It is an arithmetic number, because the mean of its divisors is an integer number (55677230784).

Almost surely, 2^{1320213002331} is an apocalyptic number.

1320213002331 is a deficient number, since it is larger than the sum of its proper divisors (461458382757).

1320213002331 is a wasteful number, since it uses less digits than its factorization.

1320213002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5091.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1320213002331 its reverse (1332003120231), we get a palindrome (2652216122562).

The spelling of 1320213002331 in words is "one trillion, three hundred twenty billion, two hundred thirteen million, two thousand, three hundred thirty-one".