1210256041530 has 16 divisors (see below), whose sum is σ = 2904614499744. Its totient is φ = 322734944400.

The previous prime is 1210256041487. The next prime is 1210256041537. The reversal of 1210256041530 is 351406520121.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 40341868051 = 1210256041530 / (1 + 2 + 1 + 0 + 2 + 5 + 6 + 0 + 4 + 1 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (1210256041537) 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, 20170933996 + ... + 20170934055.

It is an arithmetic number, because the mean of its divisors is an integer number (181538406234).

Almost surely, 2^{1210256041530} is an apocalyptic number.

1210256041530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210256041530 is an abundant number, since it is smaller than the sum of its proper divisors (1694358458214).

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

1210256041530 is a wasteful number, since it uses less digits than its factorization.

1210256041530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40341868061.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 1210256041530 in words is "one trillion, two hundred ten billion, two hundred fifty-six million, forty-one thousand, five hundred thirty".