31201201203231 has 8 divisors (see below), whose sum is σ = 41621592771504. Its totient is φ = 20790805218560.

The previous prime is 31201201203223. The next prime is 31201201203233. The reversal of 31201201203231 is 13230210210213.

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 31201201203231 - 2³ = 31201201203223 is a prime.

It is a super-2 number, since 2×31201201203231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31201201203198 and 31201201203207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201201203233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2498888616 + ... + 2498901101.

It is an arithmetic number, because the mean of its divisors is an integer number (5202699096438).

Almost surely, 2^{31201201203231} is an apocalyptic number.

31201201203231 is a deficient number, since it is larger than the sum of its proper divisors (10420391568273).

31201201203231 is a wasteful number, since it uses less digits than its factorization.

31201201203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997791801.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31201201203231 its reverse (13230210210213), we get a palindrome (44431411413444).

The spelling of 31201201203231 in words is "thirty-one trillion, two hundred one billion, two hundred one million, two hundred three thousand, two hundred thirty-one".