1011111011010 has 48 divisors (see below), whose sum is σ = 2629166454720. Its totient is φ = 269601108000.

The previous prime is 1011111010997. The next prime is 1011111011021. The reversal of 1011111011010 is 101101111101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1011111010983 and 1011111011001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269635 + ... + 1447385.

It is an arithmetic number, because the mean of its divisors is an integer number (54774301140).

Almost surely, 2^{1011111011010} is an apocalyptic number.

1011111011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011111011010 is an abundant number, since it is smaller than the sum of its proper divisors (1618055443710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011111011010 is a wasteful number, since it uses less digits than its factorization.

1011111011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187303 (or 1187300 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 1011111011010 its reverse (101101111101), we get a palindrome (1112212122111).

The spelling of 1011111011010 in words is "one trillion, eleven billion, one hundred eleven million, eleven thousand, ten".