1011434021406 has 12 divisors (see below), whose sum is σ = 2191440379752. Its totient is φ = 337144673796.

The previous prime is 1011434021369. The next prime is 1011434021407. The reversal of 1011434021406 is 6041204341101.

1011434021406 is a `hidden beast` number, since 1 + 0 + 11 + 434 + 0 + 214 + 0 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1011434021406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011434021407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28095389466 + ... + 28095389501.

It is an arithmetic number, because the mean of its divisors is an integer number (182620031646).

Almost surely, 2^{1011434021406} is an apocalyptic number.

1011434021406 is an abundant number, since it is smaller than the sum of its proper divisors (1180006358346).

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

1011434021406 is a wasteful number, since it uses less digits than its factorization.

1011434021406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56190778975 (or 56190778972 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1011434021406 its reverse (6041204341101), we get a palindrome (7052638362507).

The spelling of 1011434021406 in words is "one trillion, eleven billion, four hundred thirty-four million, twenty-one thousand, four hundred six".