145331113035231 has 6 divisors (see below), whose sum is σ = 209922718828680. Its totient is φ = 96887408690148.

The previous prime is 145331113035223. The next prime is 145331113035247. The reversal of 145331113035231 is 132530311133541.

145331113035231 is a `hidden beast` number, since 1 + 4 + 5 + 3 + 3 + 111 + 303 + 5 + 231 = 666.

It is not a de Polignac number, because 145331113035231 - 2³ = 145331113035223 is a prime.

It is a super-2 number, since 2×145331113035231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145331113035211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8073950724171 + ... + 8073950724188.

It is an arithmetic number, because the mean of its divisors is an integer number (34987119804780).

Almost surely, 2^{145331113035231} is an apocalyptic number.

145331113035231 is a deficient number, since it is larger than the sum of its proper divisors (64591605793449).

145331113035231 is a wasteful number, since it uses less digits than its factorization.

145331113035231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16147901448365 (or 16147901448362 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

Adding to 145331113035231 its reverse (132530311133541), we get a palindrome (277861424168772).

The spelling of 145331113035231 in words is "one hundred forty-five trillion, three hundred thirty-one billion, one hundred thirteen million, thirty-five thousand, two hundred thirty-one".