11311024214021 has 4 divisors (see below), whose sum is σ = 12926884816032. Its totient is φ = 9695163612012.

The previous prime is 11311024213963. The next prime is 11311024214023. The reversal of 11311024214021 is 12041242011311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11311024214021 - 2¹⁴ = 11311024197637 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 (11311024214023) 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, 807930300995 + ... + 807930301008.

It is an arithmetic number, because the mean of its divisors is an integer number (3231721204008).

Almost surely, 2^{11311024214021} is an apocalyptic number.

It is an amenable number.

11311024214021 is a deficient number, since it is larger than the sum of its proper divisors (1615860602011).

11311024214021 is an equidigital number, since it uses as much as digits as its factorization.

11311024214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615860602010.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 11311024214021 its reverse (12041242011311), we get a palindrome (23352266225332).

The spelling of 11311024214021 in words is "eleven trillion, three hundred eleven billion, twenty-four million, two hundred fourteen thousand, twenty-one".