2001231223108 has 24 divisors (see below), whose sum is σ = 3796528326080. Its totient is φ = 917528320800.

The previous prime is 2001231223099. The next prime is 2001231223133. The reversal of 2001231223108 is 8013221321002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127426638 + ... + 127442341.

Almost surely, 2^{2001231223108} is an apocalyptic number.

It is an amenable number.

2001231223108 is a deficient number, since it is larger than the sum of its proper divisors (1795297102972).

2001231223108 is a wasteful number, since it uses less digits than its factorization.

2001231223108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254869147 (or 254869145 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 2001231223108 in words is "two trillion, one billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred eight".