11401423011 has 12 divisors (see below), whose sum is σ = 17965878840. Its totient is φ = 6909953280.

The previous prime is 11401423003. The next prime is 11401423013. The reversal of 11401423011 is 11032410411.

It is not a de Polignac number, because 11401423011 - 2³ = 11401423003 is a prime.

It is a super-2 number, since 2×11401423011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11401423013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57582846 + ... + 57583043.

It is an arithmetic number, because the mean of its divisors is an integer number (1497156570).

Almost surely, 2^11401423011 is an apocalyptic number.

11401423011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11401423011 is a deficient number, since it is larger than the sum of its proper divisors (6564455829).

11401423011 is a wasteful number, since it uses less digits than its factorization.

11401423011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115165906 (or 115165903 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11401423011 its reverse (11032410411), we get a palindrome (22433833422).

The spelling of 11401423011 in words is "eleven billion, four hundred one million, four hundred twenty-three thousand, eleven".