10203023140 has 12 divisors (see below), whose sum is σ = 21426348636. Its totient is φ = 4081209248.

The previous prime is 10203023137. The next prime is 10203023147. The reversal of 10203023140 is 4132030201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6474455296 + 3728567844 = 80464^2 + 61062^2 .

It is not an unprimeable number, because it can be changed into a prime (10203023147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255075559 + ... + 255075598.

It is an arithmetic number, because the mean of its divisors is an integer number (1785529053).

Almost surely, 2^10203023140 is an apocalyptic number.

10203023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203023140 is an abundant number, since it is smaller than the sum of its proper divisors (11223325496).

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

10203023140 is a wasteful number, since it uses less digits than its factorization.

10203023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510151166 (or 510151164 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10203023140 its reverse (4132030201), we get a palindrome (14335053341).

The spelling of 10203023140 in words is "ten billion, two hundred three million, twenty-three thousand, one hundred forty".