121314440 has 32 divisors (see below), whose sum is σ = 293955480. Its totient is φ = 44792832.

The previous prime is 121314409. The next prime is 121314461. The reversal of 121314440 is 44413121.

It can be written as a sum of positive squares in 4 ways, for example, as 106461124 + 14853316 = 10318^2 + 3854^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 116129 + ... + 117168.

Almost surely, 2^121314440 is an apocalyptic number.

121314440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121314440 is an abundant number, since it is smaller than the sum of its proper divisors (172641040).

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

121314440 is a wasteful number, since it uses less digits than its factorization.

121314440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233321 (or 233317 counting only the distinct ones).

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

The square root of 121314440 is about 11014.2834537704. The cubic root of 121314440 is about 495.0368166338.

Adding to 121314440 its reverse (44413121), we get a palindrome (165727561).

The spelling of 121314440 in words is "one hundred twenty-one million, three hundred fourteen thousand, four hundred forty".