1011211423 has 2 divisors, whose sum is σ = 1011211424. Its totient is φ = 1011211422.

The previous prime is 1011211387. The next prime is 1011211429. The reversal of 1011211423 is 3241121101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011211423 - 2¹⁷ = 1011080351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011211397 and 1011211406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011211429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505605711 + 505605712.

It is an arithmetic number, because the mean of its divisors is an integer number (505605712).

Almost surely, 2^1011211423 is an apocalyptic number.

1011211423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011211423 is an equidigital number, since it uses as much as digits as its factorization.

1011211423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1011211423 is about 31799.5506729262. The cubic root of 1011211423 is about 1003.7232611218.

Adding to 1011211423 its reverse (3241121101), we get a palindrome (4252332524).

The spelling of 1011211423 in words is "one billion, eleven million, two hundred eleven thousand, four hundred twenty-three".