145335032311 has 4 divisors (see below), whose sum is σ = 166097179792. Its totient is φ = 124572884832.

The previous prime is 145335032309. The next prime is 145335032321. The reversal of 145335032311 is 113230533541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113230533541 = 1907 ⋅59376263.

It is a cyclic number.

It is not a de Polignac number, because 145335032311 - 2¹ = 145335032309 is a prime.

It is a super-3 number, since 3×145335032311³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145335032321) 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, 10381073730 + ... + 10381073743.

It is an arithmetic number, because the mean of its divisors is an integer number (41524294948).

Almost surely, 2^145335032311 is an apocalyptic number.

145335032311 is a deficient number, since it is larger than the sum of its proper divisors (20762147481).

145335032311 is an equidigital number, since it uses as much as digits as its factorization.

145335032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20762147480.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 145335032311 its reverse (113230533541), we get a palindrome (258565565852).

The spelling of 145335032311 in words is "one hundred forty-five billion, three hundred thirty-five million, thirty-two thousand, three hundred eleven".