145231513211 has 2 divisors, whose sum is σ = 145231513212. Its totient is φ = 145231513210.

The previous prime is 145231513187. The next prime is 145231513291. The reversal of 145231513211 is 112315132541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145231513211 - 2¹⁰ = 145231512187 is a prime.

It is not a weakly prime, because it can be changed into another prime (145231513291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72615756605 + 72615756606.

It is an arithmetic number, because the mean of its divisors is an integer number (72615756606).

Almost surely, 2^145231513211 is an apocalyptic number.

145231513211 is a deficient number, since it is larger than the sum of its proper divisors (1).

145231513211 is an equidigital number, since it uses as much as digits as its factorization.

145231513211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

Adding to 145231513211 its reverse (112315132541), we get a palindrome (257546645752).

The spelling of 145231513211 in words is "one hundred forty-five billion, two hundred thirty-one million, five hundred thirteen thousand, two hundred eleven".