121345670 has 16 divisors (see below), whose sum is σ = 219233088. Its totient is φ = 48358080.

The previous prime is 121345661. The next prime is 121345703. The reversal of 121345670 is 76543121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19679 + ... + 25098.

It is an arithmetic number, because the mean of its divisors is an integer number (13702068).

Almost surely, 2^121345670 is an apocalyptic number.

121345670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121345670 is a deficient number, since it is larger than the sum of its proper divisors (97887418).

121345670 is a wasteful number, since it uses less digits than its factorization.

121345670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45055.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 121345670 is about 11015.7010671133. The cubic root of 121345670 is about 495.0792921307.

Adding to 121345670 its reverse (76543121), we get a palindrome (197888791).

The spelling of 121345670 in words is "one hundred twenty-one million, three hundred forty-five thousand, six hundred seventy".