2311231023212 has 6 divisors (see below), whose sum is σ = 4044654290628. Its totient is φ = 1155615511604.

The previous prime is 2311231023163. The next prime is 2311231023223. The reversal of 2311231023212 is 2123201321132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288903877898 + ... + 288903877905.

It is an arithmetic number, because the mean of its divisors is an integer number (674109048438).

Almost surely, 2^{2311231023212} is an apocalyptic number.

It is an amenable number.

2311231023212 is a deficient number, since it is larger than the sum of its proper divisors (1733423267416).

2311231023212 is a wasteful number, since it uses less digits than its factorization.

2311231023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577807755807 (or 577807755805 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2311231023212 its reverse (2123201321132), we get a palindrome (4434432344344).

The spelling of 2311231023212 in words is "two trillion, three hundred eleven billion, two hundred thirty-one million, twenty-three thousand, two hundred twelve".