11711506702021 has 4 divisors (see below), whose sum is σ = 13384579088032. Its totient is φ = 10038434316012.

The previous prime is 11711506701931. The next prime is 11711506702061. The reversal of 11711506702021 is 12020760511711.

11711506702021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11711506702021 - 2²¹ = 11711504604869 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 (11711506702061) 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, 836536192995 + ... + 836536193008.

It is an arithmetic number, because the mean of its divisors is an integer number (3346144772008).

Almost surely, 2^{11711506702021} is an apocalyptic number.

It is an amenable number.

11711506702021 is a deficient number, since it is larger than the sum of its proper divisors (1673072386011).

11711506702021 is an equidigital number, since it uses as much as digits as its factorization.

11711506702021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673072386010.

The product of its (nonzero) digits is 5880, while the sum is 34.

The spelling of 11711506702021 in words is "eleven trillion, seven hundred eleven billion, five hundred six million, seven hundred two thousand, twenty-one".