21113010626040 has 64 divisors (see below), whose sum is σ = 70376702090400. Its totient is φ = 5630136166656.

The previous prime is 21113010625999. The next prime is 21113010626053. The reversal of 21113010626040 is 4062601031112.

It is a happy number.

21113010626040 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 30 + 1 + 0 + 626 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21113010625995 and 21113010626013.

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, 9774540877 + ... + 9774543036.

Almost surely, 2^{21113010626040} is an apocalyptic number.

21113010626040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113010626040 is an abundant number, since it is smaller than the sum of its proper divisors (49263691464360).

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

21113010626040 is a wasteful number, since it uses less digits than its factorization.

21113010626040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19549083933 (or 19549083923 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 21113010626040 its reverse (4062601031112), we get a palindrome (25175611657152).

The spelling of 21113010626040 in words is "twenty-one trillion, one hundred thirteen billion, ten million, six hundred twenty-six thousand, forty".