2311031303122 has 4 divisors (see below), whose sum is σ = 3466546954686. Its totient is φ = 1155515651560.

The previous prime is 2311031303089. The next prime is 2311031303159. The reversal of 2311031303122 is 2213031301132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1734143963161 + 576887339961 = 1316869^2 + 759531^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2311031303093 and 2311031303102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577757825779 + ... + 577757825782.

Almost surely, 2^{2311031303122} is an apocalyptic number.

2311031303122 is a deficient number, since it is larger than the sum of its proper divisors (1155515651564).

2311031303122 is a wasteful number, since it uses less digits than its factorization.

2311031303122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155515651563.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2311031303122 its reverse (2213031301132), we get a palindrome (4524062604254).

The spelling of 2311031303122 in words is "two trillion, three hundred eleven billion, thirty-one million, three hundred three thousand, one hundred twenty-two".