1212131230023 has 16 divisors (see below), whose sum is σ = 1847154928896. Its totient is φ = 692609736000.

The previous prime is 1212131229931. The next prime is 1212131230033. The reversal of 1212131230023 is 3200321312121.

It is not a de Polignac number, because 1212131230023 - 2⁸ = 1212131229767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212131230033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119861 + ... + 1917902.

It is an arithmetic number, because the mean of its divisors is an integer number (115447183056).

Almost surely, 2^{1212131230023} is an apocalyptic number.

1212131230023 is a deficient number, since it is larger than the sum of its proper divisors (635023698873).

1212131230023 is a wasteful number, since it uses less digits than its factorization.

1212131230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056774.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1212131230023 its reverse (3200321312121), we get a palindrome (4412452542144).

The spelling of 1212131230023 in words is "one trillion, two hundred twelve billion, one hundred thirty-one million, two hundred thirty thousand, twenty-three".