145103523020 has 24 divisors (see below), whose sum is σ = 305080624800. Its totient is φ = 57972223232.

The previous prime is 145103522983. The next prime is 145103523077. The reversal of 145103523020 is 20325301541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4306925 + ... + 4340484.

It is an arithmetic number, because the mean of its divisors is an integer number (12711692700).

Almost surely, 2^145103523020 is an apocalyptic number.

145103523020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145103523020 is an abundant number, since it is smaller than the sum of its proper divisors (159977101780).

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

145103523020 is a wasteful number, since it uses less digits than its factorization.

145103523020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648257 (or 8648255 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 145103523020 its reverse (20325301541), we get a palindrome (165428824561).

The spelling of 145103523020 in words is "one hundred forty-five billion, one hundred three million, five hundred twenty-three thousand, twenty".