2312021011 has 4 divisors (see below), whose sum is σ = 2333628792. Its totient is φ = 2290413232.

The previous prime is 2312020999. The next prime is 2312021051. The reversal of 2312021011 is 1101202132.

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 2312021011 - 2¹³ = 2312012819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312020982 and 2312021000.

It is not an unprimeable number, because it can be changed into a prime (2312021051) 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, 10803730 + ... + 10803943.

It is an arithmetic number, because the mean of its divisors is an integer number (583407198).

Almost surely, 2^2312021011 is an apocalyptic number.

2312021011 is a deficient number, since it is larger than the sum of its proper divisors (21607781).

2312021011 is a wasteful number, since it uses less digits than its factorization.

2312021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607780.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2312021011 is about 48083.4796057856. The cubic root of 2312021011 is about 1322.3018092733.

Adding to 2312021011 its reverse (1101202132), we get a palindrome (3413223143).

The spelling of 2312021011 in words is "two billion, three hundred twelve million, twenty-one thousand, eleven".