11421153525437 has 16 divisors (see below), whose sum is σ = 11488394643264. Its totient is φ = 11354094000000.

The previous prime is 11421153525433. The next prime is 11421153525461. The reversal of 11421153525437 is 73452535112411.

It is a cyclic number.

It is not a de Polignac number, because 11421153525437 - 2² = 11421153525433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421153525433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1164112262 + ... + 1164122072.

It is an arithmetic number, because the mean of its divisors is an integer number (718024665204).

Almost surely, 2^{11421153525437} is an apocalyptic number.

It is an amenable number.

11421153525437 is a deficient number, since it is larger than the sum of its proper divisors (67241117827).

11421153525437 is an equidigital number, since it uses as much as digits as its factorization.

11421153525437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18380.

The product of its digits is 504000, while the sum is 44.

Adding to 11421153525437 its reverse (73452535112411), we get a palindrome (84873688637848).

The spelling of 11421153525437 in words is "eleven trillion, four hundred twenty-one billion, one hundred fifty-three million, five hundred twenty-five thousand, four hundred thirty-seven".