11142451420 has 48 divisors (see below), whose sum is σ = 23847602688. Its totient is φ = 4372372800.

The previous prime is 11142451393. The next prime is 11142451477. The reversal of 11142451420 is 2415424111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195145 + ... + 245695.

It is an arithmetic number, because the mean of its divisors is an integer number (496825056).

Almost surely, 2^11142451420 is an apocalyptic number.

11142451420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11142451420 is an abundant number, since it is smaller than the sum of its proper divisors (12705151268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11142451420 is a wasteful number, since it uses less digits than its factorization.

11142451420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50770 (or 50768 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 11142451420 its reverse (2415424111), we get a palindrome (13557875531).

The spelling of 11142451420 in words is "eleven billion, one hundred forty-two million, four hundred fifty-one thousand, four hundred twenty".