31032311200973 has 2 divisors, whose sum is σ = 31032311200974. Its totient is φ = 31032311200972.

The previous prime is 31032311200883. The next prime is 31032311201131. The reversal of 31032311200973 is 37900211323013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27575080435204 + 3457230765769 = 5251198^2 + 1859363^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032311200973 - 2¹⁶ = 31032311135437 is a prime.

It is a super-3 number, since 3×31032311200973³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31032311200673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516155600486 + 15516155600487.

It is an arithmetic number, because the mean of its divisors is an integer number (15516155600487).

Almost surely, 2^{31032311200973} is an apocalyptic number.

It is an amenable number.

31032311200973 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032311200973 is an equidigital number, since it uses as much as digits as its factorization.

31032311200973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

Adding to 31032311200973 its reverse (37900211323013), we get a palindrome (68932522523986).

The spelling of 31032311200973 in words is "thirty-one trillion, thirty-two billion, three hundred eleven million, two hundred thousand, nine hundred seventy-three".