5420100121 has 4 divisors (see below), whose sum is σ = 5655756672. Its totient is φ = 5184443572.

The previous prime is 5420100107. The next prime is 5420100143. The reversal of 5420100121 is 1210010245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5420100121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5420100095 and 5420100104.

It is not an unprimeable number, because it can be changed into a prime (5420100181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117828241 + ... + 117828286.

It is an arithmetic number, because the mean of its divisors is an integer number (1413939168).

Almost surely, 2^5420100121 is an apocalyptic number.

It is an amenable number.

5420100121 is a deficient number, since it is larger than the sum of its proper divisors (235656551).

5420100121 is a wasteful number, since it uses less digits than its factorization.

5420100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235656550.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 5420100121 is about 73621.3292531451. The cubic root of 5420100121 is about 1756.5847295254.

Adding to 5420100121 its reverse (1210010245), we get a palindrome (6630110366).

The spelling of 5420100121 in words is "five billion, four hundred twenty million, one hundred thousand, one hundred twenty-one".