101203223420 has 96 divisors (see below), whose sum is σ = 231388932096. Its totient is φ = 36958924800.

The previous prime is 101203223383. The next prime is 101203223461. The reversal of 101203223420 is 24322302101.

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 = 101203223392 and 101203223401.

It is a congruent number.

It is an unprimeable number.

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, 10004165 + ... + 10014275.

It is an arithmetic number, because the mean of its divisors is an integer number (2410301376).

Almost surely, 2^101203223420 is an apocalyptic number.

101203223420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101203223420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115694466048).

101203223420 is an abundant number, since it is smaller than the sum of its proper divisors (130185708676).

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

101203223420 is a wasteful number, since it uses less digits than its factorization.

101203223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10551 (or 10549 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 101203223420 its reverse (24322302101), we get a palindrome (125525525521).

The spelling of 101203223420 in words is "one hundred one billion, two hundred three million, two hundred twenty-three thousand, four hundred twenty".