1423613111 has 4 divisors (see below), whose sum is σ = 1458335424. Its totient is φ = 1388890800.

The previous prime is 1423613089. The next prime is 1423613137. The reversal of 1423613111 is 1113163241.

It is a happy number.

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 1423613111 - 2⁶ = 1423613047 is a prime.

It is a super-2 number, since 2×1423613111² = 4053348579622196642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423613141) 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, 17361095 + ... + 17361176.

It is an arithmetic number, because the mean of its divisors is an integer number (364583856).

Almost surely, 2^1423613111 is an apocalyptic number.

1423613111 is a deficient number, since it is larger than the sum of its proper divisors (34722313).

1423613111 is an equidigital number, since it uses as much as digits as its factorization.

1423613111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34722312.

The product of its digits is 432, while the sum is 23.

The square root of 1423613111 is about 37730.7979109904. The cubic root of 1423613111 is about 1124.9433679476.

Adding to 1423613111 its reverse (1113163241), we get a palindrome (2536776352).

The spelling of 1423613111 in words is "one billion, four hundred twenty-three million, six hundred thirteen thousand, one hundred eleven".