1011112001954 has 4 divisors (see below), whose sum is σ = 1516668002934. Its totient is φ = 505556000976.

The previous prime is 1011112001953. The next prime is 1011112002011. The reversal of 1011112001954 is 4591002111101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 892240822225 + 118871179729 = 944585^2 + 344777^2 .

It is not an unprimeable number, because it can be changed into a prime (1011112001953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252778000487 + ... + 252778000490.

Almost surely, 2^{1011112001954} is an apocalyptic number.

1011112001954 is a deficient number, since it is larger than the sum of its proper divisors (505556000980).

1011112001954 is an equidigital number, since it uses as much as digits as its factorization.

1011112001954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505556000979.

The product of its (nonzero) digits is 360, while the sum is 26.

The spelling of 1011112001954 in words is "one trillion, eleven billion, one hundred twelve million, one thousand, nine hundred fifty-four".