21111314140 has 48 divisors (see below), whose sum is σ = 51066150912. Its totient is φ = 7181165376.

The previous prime is 21111314111. The next prime is 21111314171. The reversal of 21111314140 is 4141311112.

It is a super-3 number, since 3×21111314140³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575902 + ... + 611461.

It is an arithmetic number, because the mean of its divisors is an integer number (1063878144).

Almost surely, 2^21111314140 is an apocalyptic number.

21111314140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21111314140 is an abundant number, since it is smaller than the sum of its proper divisors (29954836772).

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

21111314140 is a wasteful number, since it uses less digits than its factorization.

21111314140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187506 (or 1187504 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21111314140 its reverse (4141311112), we get a palindrome (25252625252).

The spelling of 21111314140 in words is "twenty-one billion, one hundred eleven million, three hundred fourteen thousand, one hundred forty".