1211063046540 has 48 divisors (see below), whose sum is σ = 3391464142080. Its totient is φ = 322903706560.

The previous prime is 1211063046521. The next prime is 1211063046551. The reversal of 1211063046540 is 456403601121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029480 + ... + 1865999.

It is an arithmetic number, because the mean of its divisors is an integer number (70655502960).

Almost surely, 2^{1211063046540} is an apocalyptic number.

1211063046540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211063046540 is an abundant number, since it is smaller than the sum of its proper divisors (2180401095540).

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

1211063046540 is a wasteful number, since it uses less digits than its factorization.

1211063046540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902462 (or 2902460 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 1211063046540 its reverse (456403601121), we get a palindrome (1667466647661).

The spelling of 1211063046540 in words is "one trillion, two hundred eleven billion, sixty-three million, forty-six thousand, five hundred forty".