1011642032421 has 32 divisors (see below), whose sum is σ = 1502580119040. Its totient is φ = 672695784000.

The previous prime is 1011642032411. The next prime is 1011642032441. The reversal of 1011642032421 is 1242302461101.

1011642032421 is a `hidden beast` number, since 1 + 0 + 11 + 642 + 0 + 3 + 2 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 1011642032421 - 2¹⁴ = 1011642016037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011642032411) 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 31 ways as a sum of consecutive naturals, for example, 62051971 + ... + 62068271.

It is an arithmetic number, because the mean of its divisors is an integer number (46955628720).

Almost surely, 2^{1011642032421} is an apocalyptic number.

It is an amenable number.

1011642032421 is a deficient number, since it is larger than the sum of its proper divisors (490938086619).

1011642032421 is a wasteful number, since it uses less digits than its factorization.

1011642032421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22074 (or 22068 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1011642032421 its reverse (1242302461101), we get a palindrome (2253944493522).

The spelling of 1011642032421 in words is "one trillion, eleven billion, six hundred forty-two million, thirty-two thousand, four hundred twenty-one".