21150401234124 has 48 divisors (see below), whose sum is σ = 50164373573216. Its totient is φ = 6933948710400.

The previous prime is 21150401234111. The next prime is 21150401234129. The reversal of 21150401234124 is 42143210405112.

It is a junction number, because it is equal to n+sod(n) for n = 21150401234091 and 21150401234100.

It is not an unprimeable number, because it can be changed into a prime (21150401234129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7108704 + ... + 9635064.

Almost surely, 2^{21150401234124} is an apocalyptic number.

It is an amenable number.

21150401234124 is an abundant number, since it is smaller than the sum of its proper divisors (29013972339092).

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

21150401234124 is a wasteful number, since it uses less digits than its factorization.

21150401234124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537866 (or 2537864 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 21150401234124 its reverse (42143210405112), we get a palindrome (63293611639236).

The spelling of 21150401234124 in words is "twenty-one trillion, one hundred fifty billion, four hundred one million, two hundred thirty-four thousand, one hundred twenty-four".