1131261220562 has 16 divisors (see below), whose sum is σ = 1859309599392. Its totient is φ = 511944402720.

The previous prime is 1131261220561. The next prime is 1131261220633. The reversal of 1131261220562 is 2650221621311.

It is not an unprimeable number, because it can be changed into a prime (1131261220561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113257043 + ... + 113267030.

It is an arithmetic number, because the mean of its divisors is an integer number (116206849962).

Almost surely, 2^{1131261220562} is an apocalyptic number.

1131261220562 is a deficient number, since it is larger than the sum of its proper divisors (728048378830).

1131261220562 is a wasteful number, since it uses less digits than its factorization.

1131261220562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226524313.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 1131261220562 its reverse (2650221621311), we get a palindrome (3781482841873).

The spelling of 1131261220562 in words is "one trillion, one hundred thirty-one billion, two hundred sixty-one million, two hundred twenty thousand, five hundred sixty-two".