21153014260042 has 32 divisors (see below), whose sum is σ = 36666500169600. Its totient is φ = 8965066102080.

The previous prime is 21153014260039. The next prime is 21153014260067. The reversal of 21153014260042 is 24006241035112.

It is a junction number, because it is equal to n+sod(n) for n = 21153014259986 and 21153014260013.

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, 21862309 + ... + 22809352.

It is an arithmetic number, because the mean of its divisors is an integer number (1145828130300).

Almost surely, 2^{21153014260042} is an apocalyptic number.

21153014260042 is a deficient number, since it is larger than the sum of its proper divisors (15513485909558).

21153014260042 is a wasteful number, since it uses less digits than its factorization.

21153014260042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44672046.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 21153014260042 its reverse (24006241035112), we get a palindrome (45159255295154).

The spelling of 21153014260042 in words is "twenty-one trillion, one hundred fifty-three billion, fourteen million, two hundred sixty thousand, forty-two".