121869342 has 48 divisors (see below), whose sum is σ = 309939552. Its totient is φ = 33877440.

The previous prime is 121869337. The next prime is 121869347. The reversal of 121869342 is 243968121.

It is an interprime number because it is at equal distance from previous prime (121869337) and next prime (121869347).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 121869297 and 121869306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121869347) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8409 + ... + 17732.

It is an arithmetic number, because the mean of its divisors is an integer number (6457074).

Almost surely, 2^121869342 is an apocalyptic number.

121869342 is an abundant number, since it is smaller than the sum of its proper divisors (188070210).

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

121869342 is a wasteful number, since it uses less digits than its factorization.

121869342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26193 (or 26190 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 121869342 is about 11039.4448229972. Note that the first 3 decimals coincide. The cubic root of 121869342 is about 495.7904481391.

It can be divided in two parts, 12186 and 9342, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 121869342 in words is "one hundred twenty-one million, eight hundred sixty-nine thousand, three hundred forty-two".