21113151150426 has 8 divisors (see below), whose sum is σ = 42226302300864. Its totient is φ = 7037717050140.

The previous prime is 21113151150383. The next prime is 21113151150479. The reversal of 21113151150426 is 62405115131112.

It is a sphenic number, since it is the product of 3 distinct primes.

21113151150426 is an admirable number.

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, 1759429262530 + ... + 1759429262541.

It is an arithmetic number, because the mean of its divisors is an integer number (5278287787608).

Almost surely, 2^{21113151150426} is an apocalyptic number.

21113151150426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21113151150426 is a wasteful number, since it uses less digits than its factorization.

21113151150426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518858525076.

The product of its (nonzero) digits is 7200, while the sum is 33.

Adding to 21113151150426 its reverse (62405115131112), we get a palindrome (83518266281538).

The spelling of 21113151150426 in words is "twenty-one trillion, one hundred thirteen billion, one hundred fifty-one million, one hundred fifty thousand, four hundred twenty-six".