231533422355553 has 8 divisors (see below), whose sum is σ = 308711939865600. Its totient is φ = 154355259874608.

The previous prime is 231533422355513. The next prime is 231533422355591. The reversal of 231533422355553 is 355553224335132.

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

It is not a de Polignac number, because 231533422355553 - 2²⁰ = 231533421306977 is a prime.

It is a super-2 number, since 2×231533422355553² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231533422355496 and 231533422355505.

It is not an unprimeable number, because it can be changed into a prime (231533422355513) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87231838 + ... + 89846871.

It is an arithmetic number, because the mean of its divisors is an integer number (38588992483200).

Almost surely, 2^{231533422355553} is an apocalyptic number.

It is an amenable number.

231533422355553 is a deficient number, since it is larger than the sum of its proper divisors (77178517510047).

231533422355553 is a wasteful number, since it uses less digits than its factorization.

231533422355553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177514551.

The product of its digits is 24300000, while the sum is 51.

The spelling of 231533422355553 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred twenty-two million, three hundred fifty-five thousand, five hundred fifty-three".