21143010155235 has 32 divisors (see below), whose sum is σ = 34084942214400. Its totient is φ = 11191026038400.

The previous prime is 21143010155153. The next prime is 21143010155297. The reversal of 21143010155235 is 53255101034112.

It is not a de Polignac number, because 21143010155235 - 2⁹ = 21143010154723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21143010155196 and 21143010155205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1422081 + ... + 6656450.

It is an arithmetic number, because the mean of its divisors is an integer number (1065154444200).

Almost surely, 2^{21143010155235} is an apocalyptic number.

21143010155235 is a deficient number, since it is larger than the sum of its proper divisors (12941932059165).

21143010155235 is a wasteful number, since it uses less digits than its factorization.

21143010155235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079859.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 21143010155235 its reverse (53255101034112), we get a palindrome (74398111189347).

The spelling of 21143010155235 in words is "twenty-one trillion, one hundred forty-three billion, ten million, one hundred fifty-five thousand, two hundred thirty-five".