21042533150311 has 2 divisors, whose sum is σ = 21042533150312. Its totient is φ = 21042533150310.

The previous prime is 21042533150297. The next prime is 21042533150473. The reversal of 21042533150311 is 11305133524012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21042533150311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21042533150011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10521266575155 + 10521266575156.

It is an arithmetic number, because the mean of its divisors is an integer number (10521266575156).

Almost surely, 2^{21042533150311} is an apocalyptic number.

21042533150311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21042533150311 is an equidigital number, since it uses as much as digits as its factorization.

21042533150311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 21042533150311 its reverse (11305133524012), we get a palindrome (32347666674323).

The spelling of 21042533150311 in words is "twenty-one trillion, forty-two billion, five hundred thirty-three million, one hundred fifty thousand, three hundred eleven".