100420511415 has 32 divisors (see below), whose sum is σ = 183642548736. Its totient is φ = 45902401920.

The previous prime is 100420511413. The next prime is 100420511423. The reversal of 100420511415 is 514115024001.

It is not a de Polignac number, because 100420511415 - 2¹ = 100420511413 is a prime.

It is a super-2 number, since 2×100420511415² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100420511413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1346649 + ... + 1419261.

It is an arithmetic number, because the mean of its divisors is an integer number (5738829648).

Almost surely, 2^100420511415 is an apocalyptic number.

100420511415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100420511415 is a deficient number, since it is larger than the sum of its proper divisors (83222037321).

100420511415 is a wasteful number, since it uses less digits than its factorization.

100420511415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85799.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 100420511415 its reverse (514115024001), we get a palindrome (614535535416).

The spelling of 100420511415 in words is "one hundred billion, four hundred twenty million, five hundred eleven thousand, four hundred fifteen".