121120390 has 32 divisors (see below), whose sum is σ = 220877280. Its totient is φ = 47817984.

The previous prime is 121120387. The next prime is 121120409. The reversal of 121120390 is 93021121.

It is a congruent number.

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, 519714 + ... + 519946.

It is an arithmetic number, because the mean of its divisors is an integer number (6902415).

Almost surely, 2^121120390 is an apocalyptic number.

121120390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120390 is a deficient number, since it is larger than the sum of its proper divisors (99756890).

121120390 is a wasteful number, since it uses less digits than its factorization.

121120390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 121120390 is about 11005.4709122327. The cubic root of 121120390 is about 494.7727283718.

The spelling of 121120390 in words is "one hundred twenty-one million, one hundred twenty thousand, three hundred ninety".