32720431711 has 12 divisors (see below), whose sum is σ = 35983797976. Its totient is φ = 29730658320.

The previous prime is 32720431693. The next prime is 32720431729. The reversal of 32720431711 is 11713402723.

It is an interprime number because it is at equal distance from previous prime (32720431693) and next prime (32720431729).

It is not a de Polignac number, because 32720431711 - 2²¹ = 32718334559 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 (32720438711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172381 + ... + 308473.

Almost surely, 2^32720431711 is an apocalyptic number.

32720431711 is a deficient number, since it is larger than the sum of its proper divisors (3263366265).

32720431711 is a wasteful number, since it uses less digits than its factorization.

32720431711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138102 (or 138091 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 32720431711 in words is "thirty-two billion, seven hundred twenty million, four hundred thirty-one thousand, seven hundred eleven".