120011421 has 8 divisors (see below), whose sum is σ = 160150144. Its totient is φ = 79940160.

The previous prime is 120011417. The next prime is 120011431. The reversal of 120011421 is 124110021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120011421 - 2² = 120011417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120011397 and 120011406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011431) 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, 12556 + ... + 19941.

It is an arithmetic number, because the mean of its divisors is an integer number (20018768).

Almost surely, 2^120011421 is an apocalyptic number.

It is an amenable number.

120011421 is a deficient number, since it is larger than the sum of its proper divisors (40138723).

120011421 is a wasteful number, since it uses less digits than its factorization.

120011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33731.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 120011421 is about 10954.9724326445. The cubic root of 120011421 is about 493.2580624853.

Adding to 120011421 its reverse (124110021), we get a palindrome (244121442).

It can be divided in two parts, 1200 and 11421, that added together give a palindrome (12621).

The spelling of 120011421 in words is "one hundred twenty million, eleven thousand, four hundred twenty-one".