120123420140 has 24 divisors (see below), whose sum is σ = 252413349552. Its totient is φ = 48020002880.

The previous prime is 120123420133. The next prime is 120123420143. The reversal of 120123420140 is 41024321021.

It is a super-2 number, since 2×120123420140² (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 not an unprimeable number, because it can be changed into a prime (120123420143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801766 + ... + 1867245.

It is an arithmetic number, because the mean of its divisors is an integer number (10517222898).

Almost surely, 2^120123420140 is an apocalyptic number.

120123420140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120123420140 is an abundant number, since it is smaller than the sum of its proper divisors (132289929412).

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

120123420140 is a wasteful number, since it uses less digits than its factorization.

120123420140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670657 (or 3670655 counting only the distinct ones).

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

Adding to 120123420140 its reverse (41024321021), we get a palindrome (161147741161).

The spelling of 120123420140 in words is "one hundred twenty billion, one hundred twenty-three million, four hundred twenty thousand, one hundred forty".