1423211051 has 2 divisors, whose sum is σ = 1423211052. Its totient is φ = 1423211050.

The previous prime is 1423211021. The next prime is 1423211081. The reversal of 1423211051 is 1501123241.

It is a balanced prime because it is at equal distance from previous prime (1423211021) and next prime (1423211081).

It is an emirp because it is prime and its reverse (1501123241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423211051 - 2¹⁸ = 1422948907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423211021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711605525 + 711605526.

It is an arithmetic number, because the mean of its divisors is an integer number (711605526).

Almost surely, 2^1423211051 is an apocalyptic number.

1423211051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423211051 is an equidigital number, since it uses as much as digits as its factorization.

1423211051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1423211051 is about 37725.4695265679. The cubic root of 1423211051 is about 1124.8374549686.

Adding to 1423211051 its reverse (1501123241), we get a palindrome (2924334292).

The spelling of 1423211051 in words is "one billion, four hundred twenty-three million, two hundred eleven thousand, fifty-one".