100011421245 has 32 divisors (see below), whose sum is σ = 164371416192. Its totient is φ = 51888874752.

The previous prime is 100011421241. The next prime is 100011421261. The reversal of 100011421245 is 542124110001.

It is not a de Polignac number, because 100011421245 - 2² = 100011421241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011421241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4274599 + ... + 4297931.

It is an arithmetic number, because the mean of its divisors is an integer number (5136606756).

Almost surely, 2^100011421245 is an apocalyptic number.

100011421245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100011421245 is a deficient number, since it is larger than the sum of its proper divisors (64359994947).

100011421245 is a wasteful number, since it uses less digits than its factorization.

100011421245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31101.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 100011421245 its reverse (542124110001), we get a palindrome (642135531246).

The spelling of 100011421245 in words is "one hundred billion, eleven million, four hundred twenty-one thousand, two hundred forty-five".