11106421540 has 12 divisors (see below), whose sum is σ = 23323485276. Its totient is φ = 4442568608.

The previous prime is 11106421523. The next prime is 11106421561. The reversal of 11106421540 is 4512460111.

It can be written as a sum of positive squares in 2 ways, for example, as 4425974784 + 6680446756 = 66528^2 + 81734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277660519 + ... + 277660558.

It is an arithmetic number, because the mean of its divisors is an integer number (1943623773).

Almost surely, 2^11106421540 is an apocalyptic number.

11106421540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11106421540 is an abundant number, since it is smaller than the sum of its proper divisors (12217063736).

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

11106421540 is a wasteful number, since it uses less digits than its factorization.

11106421540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555321086 (or 555321084 counting only the distinct ones).

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

Adding to 11106421540 its reverse (4512460111), we get a palindrome (15618881651).

The spelling of 11106421540 in words is "eleven billion, one hundred six million, four hundred twenty-one thousand, five hundred forty".