32131220313 has 8 divisors (see below), whose sum is σ = 43104459808. Its totient is φ = 21289397184.

The previous prime is 32131220299. The next prime is 32131220377. The reversal of 32131220313 is 31302213123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32131220313 - 2⁶ = 32131220249 is a prime.

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 32131220313.

It is not an unprimeable number, because it can be changed into a prime (32131220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32853520 + ... + 32854497.

It is an arithmetic number, because the mean of its divisors is an integer number (5388057476).

Almost surely, 2^32131220313 is an apocalyptic number.

It is an amenable number.

32131220313 is a deficient number, since it is larger than the sum of its proper divisors (10973239495).

32131220313 is a wasteful number, since it uses less digits than its factorization.

32131220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65708183.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 32131220313 its reverse (31302213123), we get a palindrome (63433433436).

The spelling of 32131220313 in words is "thirty-two billion, one hundred thirty-one million, two hundred twenty thousand, three hundred thirteen".