101023321420 has 48 divisors (see below), whose sum is σ = 250277142528. Its totient is φ = 33519257280.

The previous prime is 101023321393. The next prime is 101023321439. The reversal of 101023321420 is 24123320101.

It is a happy number.

It is a super-2 number, since 2×101023321420² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 11634292 + ... + 11642971.

It is an arithmetic number, because the mean of its divisors is an integer number (5214107136).

Almost surely, 2^101023321420 is an apocalyptic number.

101023321420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101023321420 is an abundant number, since it is smaller than the sum of its proper divisors (149253821108).

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

101023321420 is a wasteful number, since it uses less digits than its factorization.

101023321420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23277310 (or 23277308 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 101023321420 its reverse (24123320101), we get a palindrome (125146641521).

The spelling of 101023321420 in words is "one hundred one billion, twenty-three million, three hundred twenty-one thousand, four hundred twenty".