2052215021431 has 4 divisors (see below), whose sum is σ = 2052219210192. Its totient is φ = 2052210832672.

The previous prime is 2052215021411. The next prime is 2052215021459. The reversal of 2052215021431 is 1341205122502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2052215021431 is a prime.

It is a super-2 number, since 2×2052215021431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2052215021431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052215021411) 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, 1244530 + ... + 2377663.

It is an arithmetic number, because the mean of its divisors is an integer number (513054802548).

Almost surely, 2^{2052215021431} is an apocalyptic number.

2052215021431 is a deficient number, since it is larger than the sum of its proper divisors (4188761).

2052215021431 is an equidigital number, since it uses as much as digits as its factorization.

2052215021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188760.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 2052215021431 in words is "two trillion, fifty-two billion, two hundred fifteen million, twenty-one thousand, four hundred thirty-one".