11420010423 has 60 divisors (see below), whose sum is σ = 18707823552. Its totient is φ = 6933911040.

The previous prime is 11420010377. The next prime is 11420010431. The reversal of 11420010423 is 32401002411.

It is not a de Polignac number, because 11420010423 - 2¹² = 11420006327 is a prime.

It is a super-2 number, since 2×11420010423² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11420010396 and 11420010405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420010463) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 717811 + ... + 733547.

Almost surely, 2^11420010423 is an apocalyptic number.

11420010423 is a deficient number, since it is larger than the sum of its proper divisors (7287813129).

11420010423 is a wasteful number, since it uses less digits than its factorization.

11420010423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15814 (or 15788 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11420010423 its reverse (32401002411), we get a palindrome (43821012834).

The spelling of 11420010423 in words is "eleven billion, four hundred twenty million, ten thousand, four hundred twenty-three".