1212564103023 has 32 divisors (see below), whose sum is σ = 2094577676800. Its totient is φ = 605931394176.

The previous prime is 1212564103021. The next prime is 1212564103081. The reversal of 1212564103023 is 3203014652121.

It is not a de Polignac number, because 1212564103023 - 2¹ = 1212564103021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212564103021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116879728 + ... + 116890101.

It is an arithmetic number, because the mean of its divisors is an integer number (65455552400).

Almost surely, 2^{1212564103023} is an apocalyptic number.

1212564103023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212564103023 is a deficient number, since it is larger than the sum of its proper divisors (882013573777).

1212564103023 is a wasteful number, since it uses less digits than its factorization.

1212564103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233769871.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1212564103023 its reverse (3203014652121), we get a palindrome (4415578755144).

The spelling of 1212564103023 in words is "one trillion, two hundred twelve billion, five hundred sixty-four million, one hundred three thousand, twenty-three".