789020112121 has 16 divisors (see below), whose sum is σ = 799742534976. Its totient is φ = 778377600000.

The previous prime is 789020112103. The next prime is 789020112143. The reversal of 789020112121 is 121211020987.

It is a cyclic number.

It is not a de Polignac number, because 789020112121 - 2¹⁷ = 789019981049 is a prime.

It is a super-2 number, since 2×789020112121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789020113121) 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, 24335521 + ... + 24367921.

It is an arithmetic number, because the mean of its divisors is an integer number (49983908436).

Almost surely, 2^789020112121 is an apocalyptic number.

It is an amenable number.

789020112121 is a deficient number, since it is larger than the sum of its proper divisors (10722422855).

789020112121 is a wasteful number, since it uses less digits than its factorization.

789020112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33624.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 789020112121 in words is "seven hundred eighty-nine billion, twenty million, one hundred twelve thousand, one hundred twenty-one".