231553421422133 has 16 divisors (see below), whose sum is σ = 232358191568832. Its totient is φ = 230750265024000.

The previous prime is 231553421422121. The next prime is 231553421422181. The reversal of 231553421422133 is 331224124355132.

It is a cyclic number.

It is not a de Polignac number, because 231553421422133 - 2¹⁴ = 231553421405749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231553421425133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137579578 + ... + 1137783108.

It is an arithmetic number, because the mean of its divisors is an integer number (14522386973052).

Almost surely, 2^{231553421422133} is an apocalyptic number.

It is an amenable number.

231553421422133 is a deficient number, since it is larger than the sum of its proper divisors (804770146699).

231553421422133 is a wasteful number, since it uses less digits than its factorization.

231553421422133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207476.

The product of its digits is 518400, while the sum is 41.

Adding to 231553421422133 its reverse (331224124355132), we get a palindrome (562777545777265).

The spelling of 231553421422133 in words is "two hundred thirty-one trillion, five hundred fifty-three billion, four hundred twenty-one million, four hundred twenty-two thousand, one hundred thirty-three".