1131030032421 has 16 divisors (see below), whose sum is σ = 1512833857344. Its totient is φ = 751624402944.

The previous prime is 1131030032399. The next prime is 1131030032437. The reversal of 1131030032421 is 1242300301311.

It is not a de Polignac number, because 1131030032421 - 2⁵ = 1131030032389 is a prime.

It is a super-2 number, since 2×1131030032421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131030032521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3393765 + ... + 3712101.

It is an arithmetic number, because the mean of its divisors is an integer number (94552116084).

Almost surely, 2^{1131030032421} is an apocalyptic number.

It is an amenable number.

1131030032421 is a deficient number, since it is larger than the sum of its proper divisors (381803824923).

1131030032421 is a wasteful number, since it uses less digits than its factorization.

1131030032421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322100.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1131030032421 its reverse (1242300301311), we get a palindrome (2373330333732).

The spelling of 1131030032421 in words is "one trillion, one hundred thirty-one billion, thirty million, thirty-two thousand, four hundred twenty-one".