231981514853 has 8 divisors (see below), whose sum is σ = 253107192960. Its totient is φ = 210861911680.

The previous prime is 231981514799. The next prime is 231981514859. The reversal of 231981514853 is 358415189132.

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

It is a cyclic number.

It is not a de Polignac number, because 231981514853 - 2¹⁸ = 231981252709 is a prime.

It is a super-2 number, since 2×231981514853² (a number of 24 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 (231981514859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438700 + ... + 1591797.

It is an arithmetic number, because the mean of its divisors is an integer number (31638399120).

Almost surely, 2^231981514853 is an apocalyptic number.

It is an amenable number.

231981514853 is a deficient number, since it is larger than the sum of its proper divisors (21125678107).

231981514853 is a wasteful number, since it uses less digits than its factorization.

231981514853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037467.

The product of its digits is 1036800, while the sum is 50.

The spelling of 231981514853 in words is "two hundred thirty-one billion, nine hundred eighty-one million, five hundred fourteen thousand, eight hundred fifty-three".