10120032040 has 16 divisors (see below), whose sum is σ = 22770072180. Its totient is φ = 4048012800.

The previous prime is 10120032029. The next prime is 10120032049. The reversal of 10120032040 is 4023002101.

It can be written as a sum of positive squares in 2 ways, for example, as 10014805476 + 105226564 = 100074^2 + 10258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10120032040.

It is not an unprimeable number, because it can be changed into a prime (10120032049) 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, 126500361 + ... + 126500440.

Almost surely, 2^10120032040 is an apocalyptic number.

10120032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120032040 is an abundant number, since it is smaller than the sum of its proper divisors (12650040140).

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

10120032040 is a wasteful number, since it uses less digits than its factorization.

10120032040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253000812 (or 253000808 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10120032040 its reverse (4023002101), we get a palindrome (14143034141).

The spelling of 10120032040 in words is "ten billion, one hundred twenty million, thirty-two thousand, forty".