2130321111 has 16 divisors (see below), whose sum is σ = 2965588224. Its totient is φ = 1357703424.

The previous prime is 2130321103. The next prime is 2130321131. The reversal of 2130321111 is 1111230312.

It is a happy number.

It is not a de Polignac number, because 2130321111 - 2³ = 2130321103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130321131) 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, 131520 + ... + 146826.

It is an arithmetic number, because the mean of its divisors is an integer number (185349264).

Almost surely, 2^2130321111 is an apocalyptic number.

2130321111 is a deficient number, since it is larger than the sum of its proper divisors (835267113).

2130321111 is a wasteful number, since it uses less digits than its factorization.

2130321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17350.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2130321111 is about 46155.4017532076. The cubic root of 2130321111 is about 1286.7130047728.

Adding to 2130321111 its reverse (1111230312), we get a palindrome (3241551423).

The spelling of 2130321111 in words is "two billion, one hundred thirty million, three hundred twenty-one thousand, one hundred eleven".