121033140 has 48 divisors (see below), whose sum is σ = 339376128. Its totient is φ = 32229504.

The previous prime is 121033139. The next prime is 121033169. The reversal of 121033140 is 41330121.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 71949 + ... + 73611.

It is an arithmetic number, because the mean of its divisors is an integer number (7070336).

Almost surely, 2^121033140 is an apocalyptic number.

121033140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121033140 is an abundant number, since it is smaller than the sum of its proper divisors (218342988).

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

121033140 is a wasteful number, since it uses less digits than its factorization.

121033140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121033140 is about 11001.5062605081. The cubic root of 121033140 is about 494.6538953926.

Adding to 121033140 its reverse (41330121), we get a palindrome (162363261).

The spelling of 121033140 in words is "one hundred twenty-one million, thirty-three thousand, one hundred forty".