145143431023 has 2 divisors, whose sum is σ = 145143431024. Its totient is φ = 145143431022.

The previous prime is 145143431009. The next prime is 145143431119. The reversal of 145143431023 is 320134341541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145143431023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145143431723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72571715511 + 72571715512.

It is an arithmetic number, because the mean of its divisors is an integer number (72571715512).

Almost surely, 2^145143431023 is an apocalyptic number.

145143431023 is a deficient number, since it is larger than the sum of its proper divisors (1).

145143431023 is an equidigital number, since it uses as much as digits as its factorization.

145143431023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 145143431023 its reverse (320134341541), we get a palindrome (465277772564).

The spelling of 145143431023 in words is "one hundred forty-five billion, one hundred forty-three million, four hundred thirty-one thousand, twenty-three".