2312011211320 has 16 divisors (see below), whose sum is σ = 5202025225560. Its totient is φ = 924804484512.

The previous prime is 2312011211303. The next prime is 2312011211351. The reversal of 2312011211320 is 231121102132.

It is a super-2 number, since 2×2312011211320² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 28900140102 + ... + 28900140181.

Almost surely, 2^{2312011211320} is an apocalyptic number.

2312011211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312011211320 is an abundant number, since it is smaller than the sum of its proper divisors (2890014014240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2312011211320 is a wasteful number, since it uses less digits than its factorization.

2312011211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57800280294 (or 57800280290 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2312011211320 its reverse (231121102132), we get a palindrome (2543132313452).

The spelling of 2312011211320 in words is "two trillion, three hundred twelve billion, eleven million, two hundred eleven thousand, three hundred twenty".