121160105400 has 96 divisors (see below), whose sum is σ = 379042369200. Its totient is φ = 32012928000.

The previous prime is 121160105393. The next prime is 121160105419. The reversal of 121160105400 is 4501061121.

It is a super-2 number, since 2×121160105400² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 860901 + ... + 991700.

Almost surely, 2^121160105400 is an apocalyptic number.

121160105400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121160105400 is an abundant number, since it is smaller than the sum of its proper divisors (257882263800).

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

121160105400 is a wasteful number, since it uses less digits than its factorization.

121160105400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852729 (or 1852720 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 121160105400 its reverse (4501061121), we get a palindrome (125661166521).

The spelling of 121160105400 in words is "one hundred twenty-one billion, one hundred sixty million, one hundred five thousand, four hundred".