213303763771 has 16 divisors (see below), whose sum is σ = 252224510400. Its totient is φ = 176497348608.

The previous prime is 213303763759. The next prime is 213303763781. The reversal of 213303763771 is 177367303312.

It is not a de Polignac number, because 213303763771 - 2²⁷ = 213169546043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213303763781) 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, 1154995 + ... + 1326883.

It is an arithmetic number, because the mean of its divisors is an integer number (15764031900).

Almost surely, 2^213303763771 is an apocalyptic number.

213303763771 is a deficient number, since it is larger than the sum of its proper divisors (38920746629).

213303763771 is a wasteful number, since it uses less digits than its factorization.

213303763771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178038.

The product of its (nonzero) digits is 333396, while the sum is 43.

The spelling of 213303763771 in words is "two hundred thirteen billion, three hundred three million, seven hundred sixty-three thousand, seven hundred seventy-one".