1031201123099 has 8 divisors (see below), whose sum is σ = 1240542704640. Its totient is φ = 837366325416.

The previous prime is 1031201123087. The next prime is 1031201123101. The reversal of 1031201123099 is 9903211021301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1031201123099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031201123059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3876695819 + ... + 3876696084.

It is an arithmetic number, because the mean of its divisors is an integer number (155067838080).

Almost surely, 2^{1031201123099} is an apocalyptic number.

1031201123099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1031201123099 is a deficient number, since it is larger than the sum of its proper divisors (209341581541).

1031201123099 is an equidigital number, since it uses as much as digits as its factorization.

1031201123099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753391929.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 1031201123099 in words is "one trillion, thirty-one billion, two hundred one million, one hundred twenty-three thousand, ninety-nine".