121038861 has 8 divisors (see below), whose sum is σ = 170878464. Its totient is φ = 75945920.

The previous prime is 121038859. The next prime is 121038887. The reversal of 121038861 is 168830121.

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 121038861 - 2¹ = 121038859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121038821) 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, 1186605 + ... + 1186706.

It is an arithmetic number, because the mean of its divisors is an integer number (21359808).

Almost surely, 2^121038861 is an apocalyptic number.

It is an amenable number.

121038861 is a deficient number, since it is larger than the sum of its proper divisors (49839603).

121038861 is a wasteful number, since it uses less digits than its factorization.

121038861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373331.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 121038861 is about 11001.7662672864. The cubic root of 121038861 is about 494.6616890441.

Adding to 121038861 its reverse (168830121), we get a palindrome (289868982).

The spelling of 121038861 in words is "one hundred twenty-one million, thirty-eight thousand, eight hundred sixty-one".