1011100121983 has 12 divisors (see below), whose sum is σ = 1184639410920. Its totient is φ = 860422297392.

The previous prime is 1011100121887. The next prime is 1011100122001. The reversal of 1011100121983 is 3891210011101.

It is not a de Polignac number, because 1011100121983 - 2¹³ = 1011100113791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011100101983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74218716 + ... + 74232337.

It is an arithmetic number, because the mean of its divisors is an integer number (98719950910).

Almost surely, 2^{1011100121983} is an apocalyptic number.

1011100121983 is a deficient number, since it is larger than the sum of its proper divisors (173539288937).

1011100121983 is a wasteful number, since it uses less digits than its factorization.

1011100121983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148451206 (or 148451199 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 1011100121983 in words is "one trillion, eleven billion, one hundred million, one hundred twenty-one thousand, nine hundred eighty-three".