11111001001010 has 32 divisors (see below), whose sum is σ = 20182741373952. Its totient is φ = 4403928248320.

The previous prime is 11111001001007. The next prime is 11111001001021. The reversal of 11111001001010 is 1010010011111.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10826792 + ... + 11808531.

It is an arithmetic number, because the mean of its divisors is an integer number (630710667936).

Almost surely, 2^{11111001001010} is an apocalyptic number.

11111001001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111001001010 is a deficient number, since it is larger than the sum of its proper divisors (9071740372942).

11111001001010 is a wasteful number, since it uses less digits than its factorization.

11111001001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22635778.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 11111001001010 its reverse (1010010011111), we get a palindrome (12121011012121).

The spelling of 11111001001010 in words is "eleven trillion, one hundred eleven billion, one million, one thousand, ten".