145321054052101 has 2 divisors, whose sum is σ = 145321054052102. Its totient is φ = 145321054052100.

The previous prime is 145321054052099. The next prime is 145321054052147. The reversal of 145321054052101 is 101250450123541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132048803580001 + 13272250472100 = 11491249^2 + 3643110^2 .

It is an emirp because it is prime and its reverse (101250450123541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145321054052101 - 2¹ = 145321054052099 is a prime.

It is a super-2 number, since 2×145321054052101² (a number of 29 digits) contains 22 as substring.

Together with 145321054052099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145321054052401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72660527026050 + 72660527026051.

It is an arithmetic number, because the mean of its divisors is an integer number (72660527026051).

Almost surely, 2^{145321054052101} is an apocalyptic number.

It is an amenable number.

145321054052101 is a deficient number, since it is larger than the sum of its proper divisors (1).

145321054052101 is an equidigital number, since it uses as much as digits as its factorization.

145321054052101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 145321054052101 in words is "one hundred forty-five trillion, three hundred twenty-one billion, fifty-four million, fifty-two thousand, one hundred one".