1311022010 has 16 divisors (see below), whose sum is σ = 2367531936. Its totient is φ = 522699408.

The previous prime is 1311021991. The next prime is 1311022033. The reversal of 1311022010 is 102201131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1311021982 and 1311022000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210452 + ... + 216591.

It is an arithmetic number, because the mean of its divisors is an integer number (147970746).

Almost surely, 2^1311022010 is an apocalyptic number.

1311022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311022010 is a deficient number, since it is larger than the sum of its proper divisors (1056509926).

1311022010 is a wasteful number, since it uses less digits than its factorization.

1311022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427357.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1311022010 is about 36208.0379197769. The cubic root of 1311022010 is about 1094.4686537533.

Adding to 1311022010 its reverse (102201131), we get a palindrome (1413223141).

The spelling of 1311022010 in words is "one billion, three hundred eleven million, twenty-two thousand, ten".