1011123312099 has 16 divisors (see below), whose sum is σ = 1363700136960. Its totient is φ = 666318656960.

The previous prime is 1011123312097. The next prime is 1011123312107. The reversal of 1011123312099 is 9902133211101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011123312099 - 2¹ = 1011123312097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011123312091) 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, 404854 + ... + 1478564.

It is an arithmetic number, because the mean of its divisors is an integer number (85231258560).

Almost surely, 2^{1011123312099} is an apocalyptic number.

1011123312099 is a deficient number, since it is larger than the sum of its proper divisors (352576824861).

1011123312099 is a wasteful number, since it uses less digits than its factorization.

1011123312099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077330.

The product of its (nonzero) digits is 2916, while the sum is 33.

The spelling of 1011123312099 in words is "one trillion, eleven billion, one hundred twenty-three million, three hundred twelve thousand, ninety-nine".