2321421111 has 36 divisors (see below), whose sum is σ = 3582417384. Its totient is φ = 1448236800.

The previous prime is 2321420993. The next prime is 2321421131. The reversal of 2321421111 is 1111241232.

2321421111 is a `hidden beast` number, since 232 + 1 + 421 + 1 + 11 = 666.

2321421111 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2321421111 - 2²¹ = 2319323959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321421131) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 468316 + ... + 473246.

It is an arithmetic number, because the mean of its divisors is an integer number (99511594).

Almost surely, 2^2321421111 is an apocalyptic number.

2321421111 is a deficient number, since it is larger than the sum of its proper divisors (1260996273).

2321421111 is a wasteful number, since it uses less digits than its factorization.

2321421111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152 (or 5132 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2321421111 is about 48181.1281623832. The cubic root of 2321421111 is about 1324.0914357054.

Adding to 2321421111 its reverse (1111241232), we get a palindrome (3432662343).

The spelling of 2321421111 in words is "two billion, three hundred twenty-one million, four hundred twenty-one thousand, one hundred eleven".