120653421 has 16 divisors (see below), whose sum is σ = 184147584. Its totient is φ = 68834304.

The previous prime is 120653419. The next prime is 120653453. The reversal of 120653421 is 124356021.

It is not a de Polignac number, because 120653421 - 2¹ = 120653419 is a prime.

It is a super-5 number, since 5×120653421⁵ (a number of 42 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120653391 and 120653400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120653321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9865 + ... + 18401.

It is an arithmetic number, because the mean of its divisors is an integer number (11509224).

Almost surely, 2^120653421 is an apocalyptic number.

It is an amenable number.

120653421 is a deficient number, since it is larger than the sum of its proper divisors (63494163).

120653421 is an equidigital number, since it uses as much as digits as its factorization.

120653421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 120653421 is about 10984.2351121960. The cubic root of 120653421 is about 494.1360585635.

The spelling of 120653421 in words is "one hundred twenty million, six hundred fifty-three thousand, four hundred twenty-one".