31101222209089 has 2 divisors, whose sum is σ = 31101222209090. Its totient is φ = 31101222209088.

The previous prime is 31101222209077. The next prime is 31101222209209. The reversal of 31101222209089 is 98090222210113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28802359769089 + 2298862440000 = 5366783^2 + 1516200^2 .

It is a cyclic number.

It is not a de Polignac number, because 31101222209089 - 2²¹ = 31101220111937 is a prime.

It is not a weakly prime, because it can be changed into another prime (31101222201089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550611104544 + 15550611104545.

It is an arithmetic number, because the mean of its divisors is an integer number (15550611104545).

Almost surely, 2^{31101222209089} is an apocalyptic number.

It is an amenable number.

31101222209089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31101222209089 is an equidigital number, since it uses as much as digits as its factorization.

31101222209089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 31101222209089 in words is "thirty-one trillion, one hundred one billion, two hundred twenty-two million, two hundred nine thousand, eighty-nine".