2920306821171 has 16 divisors (see below), whose sum is σ = 4209451276800. Its totient is φ = 1794555541728.

The previous prime is 2920306821137. The next prime is 2920306821181. The reversal of 2920306821171 is 1711286030292.

It is not a de Polignac number, because 2920306821171 - 2⁹ = 2920306820659 is a prime.

It is a super-2 number, since 2×2920306821171² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2920306821181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692341851 + ... + 692346068.

It is an arithmetic number, because the mean of its divisors is an integer number (263090704800).

Almost surely, 2^{2920306821171} is an apocalyptic number.

2920306821171 is a deficient number, since it is larger than the sum of its proper divisors (1289144455629).

2920306821171 is a wasteful number, since it uses less digits than its factorization.

2920306821171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384687978.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 2920306821171 in words is "two trillion, nine hundred twenty billion, three hundred six million, eight hundred twenty-one thousand, one hundred seventy-one".