31206501451001 has 2 divisors, whose sum is σ = 31206501451002. Its totient is φ = 31206501451000.

The previous prime is 31206501450977. The next prime is 31206501451009. The reversal of 31206501451001 is 10015410560213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30520089201001 + 686412250000 = 5524499^2 + 828500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31206501451001 is a prime.

It is a super-2 number, since 2×31206501451001² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31206501451009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15603250725500 + 15603250725501.

It is an arithmetic number, because the mean of its divisors is an integer number (15603250725501).

Almost surely, 2^{31206501451001} is an apocalyptic number.

It is an amenable number.

31206501451001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31206501451001 is an equidigital number, since it uses as much as digits as its factorization.

31206501451001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 31206501451001 in words is "thirty-one trillion, two hundred six billion, five hundred one million, four hundred fifty-one thousand, one".