2231121001311 has 12 divisors (see below), whose sum is σ = 3309831155592. Its totient is φ = 1447213622256.

The previous prime is 2231121001283. The next prime is 2231121001327. The reversal of 2231121001311 is 1131001211322.

2231121001311 is a `hidden beast` number, since 2 + 231 + 121 + 0 + 0 + 1 + 311 = 666.

It is not a de Polignac number, because 2231121001311 - 2⁵ = 2231121001279 is a prime.

It is a super-3 number, since 3×2231121001311³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231121001211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3350031201 + ... + 3350031866.

It is an arithmetic number, because the mean of its divisors is an integer number (275819262966).

Almost surely, 2^{2231121001311} is an apocalyptic number.

2231121001311 is a deficient number, since it is larger than the sum of its proper divisors (1078710154281).

2231121001311 is a wasteful number, since it uses less digits than its factorization.

2231121001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700063110 (or 6700063107 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2231121001311 its reverse (1131001211322), we get a palindrome (3362122212633).

The spelling of 2231121001311 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, one thousand, three hundred eleven".