21113100414312 has 32 divisors (see below), whose sum is σ = 52783479226080. Its totient is φ = 7037603046080.

The previous prime is 21113100414311. The next prime is 21113100414323. The reversal of 21113100414312 is 21341400131112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21113100414311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4281639 + ... + 7781942.

It is an arithmetic number, because the mean of its divisors is an integer number (1649483725815).

Almost surely, 2^{21113100414312} is an apocalyptic number.

It is an amenable number.

21113100414312 is an abundant number, since it is smaller than the sum of its proper divisors (31670378811768).

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

21113100414312 is a wasteful number, since it uses less digits than its factorization.

21113100414312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12136513 (or 12136509 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 21113100414312 its reverse (21341400131112), we get a palindrome (42454500545424).

The spelling of 21113100414312 in words is "twenty-one trillion, one hundred thirteen billion, one hundred million, four hundred fourteen thousand, three hundred twelve".