2421013533531 has 8 divisors (see below), whose sum is σ = 3228034252560. Its totient is φ = 1614000918432.

The previous prime is 2421013533457. The next prime is 2421013533553. The reversal of 2421013533531 is 1353353101242.

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

It is not a de Polignac number, because 2421013533531 - 2¹³ = 2421013525339 is a prime.

It is a super-2 number, since 2×2421013533531² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2421013533492 and 2421013533501.

It is not an unprimeable number, because it can be changed into a prime (2421013533581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290796 + ... + 2551113.

It is an arithmetic number, because the mean of its divisors is an integer number (403504281570).

Almost surely, 2^{2421013533531} is an apocalyptic number.

2421013533531 is a deficient number, since it is larger than the sum of its proper divisors (807020719029).

2421013533531 is a wasteful number, since it uses less digits than its factorization.

2421013533531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051965.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 2421013533531 its reverse (1353353101242), we get a palindrome (3774366634773).

The spelling of 2421013533531 in words is "two trillion, four hundred twenty-one billion, thirteen million, five hundred thirty-three thousand, five hundred thirty-one".