31234203001 has 2 divisors, whose sum is σ = 31234203002. Its totient is φ = 31234203000.

The previous prime is 31234202963. The next prime is 31234203023. The reversal of 31234203001 is 10030243213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31217589225 + 16613776 = 176685^2 + 4076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31234203001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31234203001.

It is not a weakly prime, because it can be changed into another prime (31234203041) 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 as a sum of consecutive naturals, namely, 15617101500 + 15617101501.

It is an arithmetic number, because the mean of its divisors is an integer number (15617101501).

Almost surely, 2^31234203001 is an apocalyptic number.

It is an amenable number.

31234203001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234203001 is an equidigital number, since it uses as much as digits as its factorization.

31234203001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31234203001 its reverse (10030243213), we get a palindrome (41264446214).

The spelling of 31234203001 in words is "thirty-one billion, two hundred thirty-four million, two hundred three thousand, one".