11142231451 has 8 divisors (see below), whose sum is σ = 12386401664. Its totient is φ = 9953357760.

The previous prime is 11142231421. The next prime is 11142231517. The reversal of 11142231451 is 15413224111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11142231451 - 2⁷ = 11142231323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11142231421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13823706 + ... + 13824511.

It is an arithmetic number, because the mean of its divisors is an integer number (1548300208).

Almost surely, 2^11142231451 is an apocalyptic number.

11142231451 is a deficient number, since it is larger than the sum of its proper divisors (1244170213).

11142231451 is a wasteful number, since it uses less digits than its factorization.

11142231451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27648261.

The product of its digits is 960, while the sum is 25.

Adding to 11142231451 its reverse (15413224111), we get a palindrome (26555455562).

The spelling of 11142231451 in words is "eleven billion, one hundred forty-two million, two hundred thirty-one thousand, four hundred fifty-one".