145442311320 has 64 divisors (see below), whose sum is σ = 437215760640. Its totient is φ = 38705609600.

The previous prime is 145442311307. The next prime is 145442311351. The reversal of 145442311320 is 23113244541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175316 + ... + 1293155.

It is an arithmetic number, because the mean of its divisors is an integer number (6831496260).

Almost surely, 2^145442311320 is an apocalyptic number.

145442311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145442311320 is an abundant number, since it is smaller than the sum of its proper divisors (291773449320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145442311320 is a wasteful number, since it uses less digits than its factorization.

145442311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468976 (or 2468972 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 145442311320 its reverse (23113244541), we get a palindrome (168555555861).

The spelling of 145442311320 in words is "one hundred forty-five billion, four hundred forty-two million, three hundred eleven thousand, three hundred twenty".