231545432344245 has 8 divisors (see below), whose sum is σ = 370472691750816. Its totient is φ = 123490897250256.

The previous prime is 231545432344243. The next prime is 231545432344253. The reversal of 231545432344245 is 542443234545132.

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

It is not a de Polignac number, because 231545432344245 - 2¹ = 231545432344243 is a prime.

It is a super-2 number, since 2×231545432344245² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231545432344243) 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, 7718181078127 + ... + 7718181078156.

It is an arithmetic number, because the mean of its divisors is an integer number (46309086468852).

Almost surely, 2^{231545432344245} is an apocalyptic number.

It is an amenable number.

231545432344245 is a deficient number, since it is larger than the sum of its proper divisors (138927259406571).

231545432344245 is a wasteful number, since it uses less digits than its factorization.

231545432344245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15436362156291.

The product of its digits is 27648000, while the sum is 51.

Adding to 231545432344245 its reverse (542443234545132), we get a palindrome (773988666889377).

The spelling of 231545432344245 in words is "two hundred thirty-one trillion, five hundred forty-five billion, four hundred thirty-two million, three hundred forty-four thousand, two hundred forty-five".