3131133320201 has 4 divisors (see below), whose sum is σ = 3315317633172. Its totient is φ = 2946949007232.

The previous prime is 3131133320197. The next prime is 3131133320221. The reversal of 3131133320201 is 1020233311313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1135341394576 + 1995791925625 = 1065524^2 + 1412725^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131133320201 - 2² = 3131133320197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131133320221) 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, 92092156460 + ... + 92092156493.

It is an arithmetic number, because the mean of its divisors is an integer number (828829408293).

Almost surely, 2^{3131133320201} is an apocalyptic number.

It is an amenable number.

3131133320201 is a deficient number, since it is larger than the sum of its proper divisors (184184312971).

3131133320201 is a wasteful number, since it uses less digits than its factorization.

3131133320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184184312970.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3131133320201 its reverse (1020233311313), we get a palindrome (4151366631514).

The spelling of 3131133320201 in words is "three trillion, one hundred thirty-one billion, one hundred thirty-three million, three hundred twenty thousand, two hundred one".