145220354031023 has 2 divisors, whose sum is σ = 145220354031024. Its totient is φ = 145220354031022.

The previous prime is 145220354031017. The next prime is 145220354031047. The reversal of 145220354031023 is 320130453022541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145220354031023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145220354031523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72610177015511 + 72610177015512.

It is an arithmetic number, because the mean of its divisors is an integer number (72610177015512).

Almost surely, 2^{145220354031023} is an apocalyptic number.

145220354031023 is a deficient number, since it is larger than the sum of its proper divisors (1).

145220354031023 is an equidigital number, since it uses as much as digits as its factorization.

145220354031023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 145220354031023 in words is "one hundred forty-five trillion, two hundred twenty billion, three hundred fifty-four million, thirty-one thousand, twenty-three".