145202314220331 has 4 divisors (see below), whose sum is σ = 193603085627112. Its totient is φ = 96801542813552.

The previous prime is 145202314220321. The next prime is 145202314220363. The reversal of 145202314220331 is 133022413202541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145202314220331 - 2¹⁸ = 145202313958187 is a prime.

It is a super-2 number, since 2×145202314220331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145202314220292 and 145202314220301.

It is not an unprimeable number, because it can be changed into a prime (145202314220321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24200385703386 + ... + 24200385703391.

It is an arithmetic number, because the mean of its divisors is an integer number (48400771406778).

Almost surely, 2^{145202314220331} is an apocalyptic number.

145202314220331 is a deficient number, since it is larger than the sum of its proper divisors (48400771406781).

145202314220331 is an equidigital number, since it uses as much as digits as its factorization.

145202314220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48400771406780.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 145202314220331 its reverse (133022413202541), we get a palindrome (278224727422872).

The spelling of 145202314220331 in words is "one hundred forty-five trillion, two hundred two billion, three hundred fourteen million, two hundred twenty thousand, three hundred thirty-one".