2311422121 has 2 divisors, whose sum is σ = 2311422122. Its totient is φ = 2311422120.

The previous prime is 2311422107. The next prime is 2311422161. The reversal of 2311422121 is 1212241132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2275290000 + 36132121 = 47700^2 + 6011^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311422121 - 2⁵ = 2311422089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311422101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155711060 + 1155711061.

It is an arithmetic number, because the mean of its divisors is an integer number (1155711061).

Almost surely, 2^2311422121 is an apocalyptic number.

It is an amenable number.

2311422121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311422121 is an equidigital number, since it uses as much as digits as its factorization.

2311422121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 2311422121 is about 48077.2515957391. The cubic root of 2311422121 is about 1322.1876260957.

Adding to 2311422121 its reverse (1212241132), we get a palindrome (3523663253).

The spelling of 2311422121 in words is "two billion, three hundred eleven million, four hundred twenty-two thousand, one hundred twenty-one".