201023321131 has 8 divisors (see below), whose sum is σ = 222102493344. Its totient is φ = 180972401280.

The previous prime is 201023321129. The next prime is 201023321171. The reversal of 201023321131 is 131123320102.

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

It is a cyclic number.

It is not a de Polignac number, because 201023321131 - 2¹ = 201023321129 is a prime.

It is a super-2 number, since 2×201023321131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201023321099 and 201023321108.

It is not an unprimeable number, because it can be changed into a prime (201023321101) 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, 257062680 + ... + 257063461.

It is an arithmetic number, because the mean of its divisors is an integer number (27762811668).

Almost surely, 2^201023321131 is an apocalyptic number.

201023321131 is a deficient number, since it is larger than the sum of its proper divisors (21079172213).

201023321131 is a wasteful number, since it uses less digits than its factorization.

201023321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514126181.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201023321131 its reverse (131123320102), we get a palindrome (332146641233).

The spelling of 201023321131 in words is "two hundred one billion, twenty-three million, three hundred twenty-one thousand, one hundred thirty-one".