2133531021554 has 8 divisors (see below), whose sum is σ = 3310651585260. Its totient is φ = 1029980493136.

The previous prime is 2133531021553. The next prime is 2133531021593. The reversal of 2133531021554 is 4551201353312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1876699985329 + 256831036225 = 1369927^2 + 506785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2133531021553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18392508749 + ... + 18392508864.

Almost surely, 2^{2133531021554} is an apocalyptic number.

2133531021554 is a deficient number, since it is larger than the sum of its proper divisors (1177120563706).

2133531021554 is a wasteful number, since it uses less digits than its factorization.

2133531021554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36785017644.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 2133531021554 its reverse (4551201353312), we get a palindrome (6684732374866).

The spelling of 2133531021554 in words is "two trillion, one hundred thirty-three billion, five hundred thirty-one million, twenty-one thousand, five hundred fifty-four".