121761043 has 8 divisors (see below), whose sum is σ = 126920912. Its totient is φ = 116699616.

The previous prime is 121761023. The next prime is 121761047. The reversal of 121761043 is 340167121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121761043 - 2¹⁷ = 121629971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121760999 and 121761017.

It is not an unprimeable number, because it can be changed into a prime (121761047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22080 + ... + 27037.

It is an arithmetic number, because the mean of its divisors is an integer number (15865114).

Almost surely, 2^121761043 is an apocalyptic number.

121761043 is a deficient number, since it is larger than the sum of its proper divisors (5159869).

121761043 is an equidigital number, since it uses as much as digits as its factorization.

121761043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49221.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 121761043 is about 11034.5386401063. The cubic root of 121761043 is about 495.6435434798.

The spelling of 121761043 in words is "one hundred twenty-one million, seven hundred sixty-one thousand, forty-three".