101420450120 has 64 divisors (see below), whose sum is σ = 253160510400. Its totient is φ = 36255066880.

The previous prime is 101420450081. The next prime is 101420450137. The reversal of 101420450120 is 21054024101.

It is a happy number.

It is a super-2 number, since 2×101420450120² (a number of 23 digits) contains 22 as substring.

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 = 101420450092 and 101420450101.

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, 1927439 + ... + 1979358.

It is an arithmetic number, because the mean of its divisors is an integer number (3955632975).

Almost surely, 2^101420450120 is an apocalyptic number.

101420450120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101420450120 is an abundant number, since it is smaller than the sum of its proper divisors (151740060280).

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

101420450120 is a wasteful number, since it uses less digits than its factorization.

101420450120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906878 (or 3906874 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 101420450120 its reverse (21054024101), we get a palindrome (122474474221).

The spelling of 101420450120 in words is "one hundred one billion, four hundred twenty million, four hundred fifty thousand, one hundred twenty".