6881135223031 has 4 divisors (see below), whose sum is σ = 6881786424592. Its totient is φ = 6880484021472.

The previous prime is 6881135222971. The next prime is 6881135223049. The reversal of 6881135223031 is 1303225311886.

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

It is a cyclic number.

It is not a de Polignac number, because 6881135223031 - 2²⁷ = 6881001005303 is a prime.

It is a super-2 number, since 2×6881135223031² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881135223071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325584930 + ... + 325606063.

It is an arithmetic number, because the mean of its divisors is an integer number (1720446606148).

Almost surely, 2^{6881135223031} is an apocalyptic number.

6881135223031 is a deficient number, since it is larger than the sum of its proper divisors (651201561).

6881135223031 is a wasteful number, since it uses less digits than its factorization.

6881135223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651201560.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 6881135223031 in words is "six trillion, eight hundred eighty-one billion, one hundred thirty-five million, two hundred twenty-three thousand, thirty-one".