145311331313 has 8 divisors (see below), whose sum is σ = 146136509280. Its totient is φ = 144486302400.

The previous prime is 145311331309. The next prime is 145311331351. The reversal of 145311331313 is 313133113541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145311331313 - 2² = 145311331309 is a prime.

It is a super-2 number, since 2×145311331313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145311631313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349638 + ... + 2410688.

It is an arithmetic number, because the mean of its divisors is an integer number (18267063660).

Almost surely, 2^145311331313 is an apocalyptic number.

It is an amenable number.

145311331313 is a deficient number, since it is larger than the sum of its proper divisors (825177967).

145311331313 is a wasteful number, since it uses less digits than its factorization.

145311331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74527.

The product of its digits is 4860, while the sum is 29.

Adding to 145311331313 its reverse (313133113541), we get a palindrome (458444444854).

The spelling of 145311331313 in words is "one hundred forty-five billion, three hundred eleven million, three hundred thirty-one thousand, three hundred thirteen".