11420333331 has 16 divisors (see below), whose sum is σ = 16613407488. Its totient is φ = 6920575200.

The previous prime is 11420333263. The next prime is 11420333333. The reversal of 11420333331 is 13333302411.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11420333331 is a prime.

It is a super-2 number, since 2×11420333331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11420333333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357141 + ... + 387801.

It is an arithmetic number, because the mean of its divisors is an integer number (1038337968).

Almost surely, 2^11420333331 is an apocalyptic number.

11420333331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11420333331 is a deficient number, since it is larger than the sum of its proper divisors (5193074157).

11420333331 is a wasteful number, since it uses less digits than its factorization.

11420333331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41962.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 11420333331 its reverse (13333302411), we get a palindrome (24753635742).

The spelling of 11420333331 in words is "eleven billion, four hundred twenty million, three hundred thirty-three thousand, three hundred thirty-one".