121022843623 has 16 divisors (see below), whose sum is σ = 134317965600. Its totient is φ = 108113356800.

The previous prime is 121022843611. The next prime is 121022843647. The reversal of 121022843623 is 326348220121.

It is a cyclic number.

It is not a de Polignac number, because 121022843623 - 2¹³ = 121022835431 is a prime.

It is a super-2 number, since 2×121022843623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022847623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617911 + ... + 789847.

It is an arithmetic number, because the mean of its divisors is an integer number (8394872850).

Almost surely, 2^121022843623 is an apocalyptic number.

121022843623 is a deficient number, since it is larger than the sum of its proper divisors (13295121977).

121022843623 is a wasteful number, since it uses less digits than its factorization.

121022843623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173058.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 121022843623 in words is "one hundred twenty-one billion, twenty-two million, eight hundred forty-three thousand, six hundred twenty-three".