121400411 has 4 divisors (see below), whose sum is σ = 132436824. Its totient is φ = 110364000.

The previous prime is 121400401. The next prime is 121400429. The reversal of 121400411 is 114004121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121400411 - 2¹⁰ = 121399387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121400401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5518190 + ... + 5518211.

It is an arithmetic number, because the mean of its divisors is an integer number (33109206).

Almost surely, 2^121400411 is an apocalyptic number.

121400411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121400411 is a deficient number, since it is larger than the sum of its proper divisors (11036413).

121400411 is a wasteful number, since it uses less digits than its factorization.

121400411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11036412.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 121400411 is about 11018.1854676712. The cubic root of 121400411 is about 495.1537270385.

Adding to 121400411 its reverse (114004121), we get a palindrome (235404532).

It can be divided in two parts, 1 and 21400411, that added together give a palindrome (21400412).

The spelling of 121400411 in words is "one hundred twenty-one million, four hundred thousand, four hundred eleven".