1201210011983 has 16 divisors (see below), whose sum is σ = 1268188739136. Its totient is φ = 1136498791680.

The previous prime is 1201210011959. The next prime is 1201210012033. The reversal of 1201210011983 is 3891100121021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201210011983 - 2⁶ = 1201210011919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201210011913) 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, 2940116 + ... + 3323657.

It is an arithmetic number, because the mean of its divisors is an integer number (79261796196).

Almost surely, 2^{1201210011983} is an apocalyptic number.

1201210011983 is a deficient number, since it is larger than the sum of its proper divisors (66978727153).

1201210011983 is an equidigital number, since it uses as much as digits as its factorization.

1201210011983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263954.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 1201210011983 in words is "one trillion, two hundred one billion, two hundred ten million, eleven thousand, nine hundred eighty-three".