21031133310032 has 20 divisors (see below), whose sum is σ = 40781749069236. Its totient is φ = 10506810969600.

The previous prime is 21031133310029. The next prime is 21031133310071. The reversal of 21031133310032 is 23001333113012.

It can be written as a sum of positive squares in 2 ways, for example, as 330307676176 + 20700825633856 = 574724^2 + 4549816^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547210523 + ... + 547248954.

Almost surely, 2^{21031133310032} is an apocalyptic number.

It is an amenable number.

21031133310032 is a deficient number, since it is larger than the sum of its proper divisors (19750615759204).

21031133310032 is a wasteful number, since it uses less digits than its factorization.

21031133310032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094460686 (or 1094460680 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21031133310032 its reverse (23001333113012), we get a palindrome (44032466423044).

It can be divided in two parts, 2103113 and 3310032, that added together give a palindrome (5413145).

The spelling of 21031133310032 in words is "twenty-one trillion, thirty-one billion, one hundred thirty-three million, three hundred ten thousand, thirty-two".