121142670 has 96 divisors (see below), whose sum is σ = 336286080. Its totient is φ = 27622080.

The previous prime is 121142627. The next prime is 121142677. The reversal of 121142670 is 76241121.

It is a super-3 number, since 3×121142670³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121142670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121142677) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 871461 + ... + 871599.

It is an arithmetic number, because the mean of its divisors is an integer number (3502980).

Almost surely, 2^121142670 is an apocalyptic number.

121142670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121142670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168143040).

121142670 is an abundant number, since it is smaller than the sum of its proper divisors (215143410).

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

121142670 is a wasteful number, since it uses less digits than its factorization.

121142670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 121142670 is about 11006.4830895250. The cubic root of 121142670 is about 494.8030641959.

Adding to 121142670 its reverse (76241121), we get a palindrome (197383791).

The spelling of 121142670 in words is "one hundred twenty-one million, one hundred forty-two thousand, six hundred seventy".