1121620334540 has 24 divisors (see below), whose sum is σ = 2436623486640. Its totient is φ = 433177508288.

The previous prime is 1121620334537. The next prime is 1121620334551. The reversal of 1121620334540 is 454330261211.

It is a junction number, because it is equal to n+sod(n) for n = 1121620334497 and 1121620334506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966913502 + ... + 966914661.

It is an arithmetic number, because the mean of its divisors is an integer number (101525978610).

Almost surely, 2^{1121620334540} is an apocalyptic number.

1121620334540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121620334540 is an abundant number, since it is smaller than the sum of its proper divisors (1315003152100).

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

1121620334540 is a wasteful number, since it uses less digits than its factorization.

1121620334540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933828201 (or 1933828199 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 1121620334540 its reverse (454330261211), we get a palindrome (1575950595751).

The spelling of 1121620334540 in words is "one trillion, one hundred twenty-one billion, six hundred twenty million, three hundred thirty-four thousand, five hundred forty".