231322001131 has 8 divisors (see below), whose sum is σ = 249128759600. Its totient is φ = 213517065312.

The previous prime is 231322001081. The next prime is 231322001159. The reversal of 231322001131 is 131100223132.

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 231322001131 - 2¹³ = 231321992939 is a prime.

It is a super-2 number, since 2×231322001131² (a number of 24 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 = 231322001099 and 231322001108.

It is not an unprimeable number, because it can be changed into a prime (231322004131) 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, 186156 + ... + 705193.

It is an arithmetic number, because the mean of its divisors is an integer number (31141094950).

Almost surely, 2^231322001131 is an apocalyptic number.

231322001131 is a deficient number, since it is larger than the sum of its proper divisors (17806758469).

231322001131 is a wasteful number, since it uses less digits than its factorization.

231322001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911325.

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

Adding to 231322001131 its reverse (131100223132), we get a palindrome (362422224263).

The spelling of 231322001131 in words is "two hundred thirty-one billion, three hundred twenty-two million, one thousand, one hundred thirty-one".