21042533150402 has 16 divisors (see below), whose sum is σ = 33294415737600. Its totient is φ = 9946706684400.

The previous prime is 21042533150311. The next prime is 21042533150473. The reversal of 21042533150402 is 20405133524012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578009849 + ... + 578046252.

It is an arithmetic number, because the mean of its divisors is an integer number (2080900983600).

Almost surely, 2^{21042533150402} is an apocalyptic number.

21042533150402 is a deficient number, since it is larger than the sum of its proper divisors (12251882587198).

21042533150402 is a wasteful number, since it uses less digits than its factorization.

21042533150402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156056601.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 21042533150402 its reverse (20405133524012), we get a palindrome (41447666674414).

The spelling of 21042533150402 in words is "twenty-one trillion, forty-two billion, five hundred thirty-three million, one hundred fifty thousand, four hundred two".