21154112314150 has 24 divisors (see below), whose sum is σ = 39351016255464. Its totient is φ = 8460705710400.

The previous prime is 21154112314129. The next prime is 21154112314169. The reversal of 21154112314150 is 5141321145112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23025327 + ... + 23926426.

It is an arithmetic number, because the mean of its divisors is an integer number (1639625677311).

Almost surely, 2^{21154112314150} is an apocalyptic number.

21154112314150 is a deficient number, since it is larger than the sum of its proper divisors (18196903941314).

21154112314150 is a wasteful number, since it uses less digits than its factorization.

21154112314150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46960776 (or 46960771 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 21154112314150 its reverse (5141321145112), we get a palindrome (26295433459262).

The spelling of 21154112314150 in words is "twenty-one trillion, one hundred fifty-four billion, one hundred twelve million, three hundred fourteen thousand, one hundred fifty".