1011421231011 has 128 divisors (see below), whose sum is σ = 1645383168000. Its totient is φ = 611837452800.

The previous prime is 1011421231003. The next prime is 1011421231043. The reversal of 1011421231011 is 1101321241101.

1011421231011 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 421 + 231 + 0 + 11 = 666.

It is not a de Polignac number, because 1011421231011 - 2³ = 1011421231003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011421231091) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 743144971 + ... + 743146331.

It is an arithmetic number, because the mean of its divisors is an integer number (12854556000).

Almost surely, 2^{1011421231011} is an apocalyptic number.

1011421231011 is a deficient number, since it is larger than the sum of its proper divisors (633961936989).

1011421231011 is a wasteful number, since it uses less digits than its factorization.

1011421231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1011421231011 its reverse (1101321241101), we get a palindrome (2112742472112).

The spelling of 1011421231011 in words is "one trillion, eleven billion, four hundred twenty-one million, two hundred thirty-one thousand, eleven".