311213100003 has 16 divisors (see below), whose sum is σ = 462279407520. Its totient is φ = 184911761664.

The previous prime is 311213099983. The next prime is 311213100007. The reversal of 311213100003 is 300001312113.

It is not a de Polignac number, because 311213100003 - 2¹⁰ = 311213098979 is a prime.

It is a super-2 number, since 2×311213100003² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311213100007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137582026 + ... + 137584287.

It is an arithmetic number, because the mean of its divisors is an integer number (28892462970).

Almost surely, 2^311213100003 is an apocalyptic number.

311213100003 is a deficient number, since it is larger than the sum of its proper divisors (151066307517).

311213100003 is a wasteful number, since it uses less digits than its factorization.

311213100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275166358.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 311213100003 its reverse (300001312113), we get a palindrome (611214412116).

The spelling of 311213100003 in words is "three hundred eleven billion, two hundred thirteen million, one hundred thousand, three".