100142231420 has 48 divisors (see below), whose sum is σ = 262190573568. Its totient is φ = 31213162560.

The previous prime is 100142231419. The next prime is 100142231461. The reversal of 100142231420 is 24132241001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100142231392 and 100142231401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32512172 + ... + 32515251.

It is an arithmetic number, because the mean of its divisors is an integer number (5462303616).

Almost surely, 2^100142231420 is an apocalyptic number.

100142231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100142231420 is an abundant number, since it is smaller than the sum of its proper divisors (162048342148).

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

100142231420 is a wasteful number, since it uses less digits than its factorization.

100142231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65027450 (or 65027448 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 100142231420 its reverse (24132241001), we get a palindrome (124274472421).

The spelling of 100142231420 in words is "one hundred billion, one hundred forty-two million, two hundred thirty-one thousand, four hundred twenty".