231112455445 has 32 divisors (see below), whose sum is σ = 283001040000. Its totient is φ = 181153392384.

The previous prime is 231112455443. The next prime is 231112455479. The reversal of 231112455445 is 544554211132.

231112455445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231112455445 - 2¹ = 231112455443 is a prime.

It is a super-2 number, since 2×231112455445² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231112455443) 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 31 ways as a sum of consecutive naturals, for example, 45322506 + ... + 45327604.

It is an arithmetic number, because the mean of its divisors is an integer number (8843782500).

Almost surely, 2^231112455445 is an apocalyptic number.

It is an amenable number.

231112455445 is a deficient number, since it is larger than the sum of its proper divisors (51888584555).

231112455445 is a wasteful number, since it uses less digits than its factorization.

231112455445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6069.

The product of its digits is 96000, while the sum is 37.

Adding to 231112455445 its reverse (544554211132), we get a palindrome (775666666577).

The spelling of 231112455445 in words is "two hundred thirty-one billion, one hundred twelve million, four hundred fifty-five thousand, four hundred forty-five".