100012021403 has 16 divisors (see below), whose sum is σ = 116749430784. Its totient is φ = 83887671840.

The previous prime is 100012021391. The next prime is 100012021507. The reversal of 100012021403 is 304120210001.

It is not a de Polignac number, because 100012021403 - 2⁴ = 100012021387 is a prime.

It is a super-2 number, since 2×100012021403² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100012020403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2522513 + ... + 2561853.

It is an arithmetic number, because the mean of its divisors is an integer number (7296839424).

Almost surely, 2^100012021403 is an apocalyptic number.

100012021403 is a deficient number, since it is larger than the sum of its proper divisors (16737409381).

100012021403 is an equidigital number, since it uses as much as digits as its factorization.

100012021403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47122.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100012021403 its reverse (304120210001), we get a palindrome (404132231404).

The spelling of 100012021403 in words is "one hundred billion, twelve million, twenty-one thousand, four hundred three".