311213000101 has 2 divisors, whose sum is σ = 311213000102. Its totient is φ = 311213000100.

The previous prime is 311213000051. The next prime is 311213000107. The reversal of 311213000101 is 101000312113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162042477025 + 149170523076 = 402545^2 + 386226^2 .

It is an emirp because it is prime and its reverse (101000312113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311213000101 - 2¹⁵ = 311212967333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311213000107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155606500050 + 155606500051.

It is an arithmetic number, because the mean of its divisors is an integer number (155606500051).

Almost surely, 2^311213000101 is an apocalyptic number.

It is an amenable number.

311213000101 is a deficient number, since it is larger than the sum of its proper divisors (1).

311213000101 is an equidigital number, since it uses as much as digits as its factorization.

311213000101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 311213000101 its reverse (101000312113), we get a palindrome (412213312214).

The spelling of 311213000101 in words is "three hundred eleven billion, two hundred thirteen million, one hundred one", and thus it is an aban number.