1212232310153 has 2 divisors, whose sum is σ = 1212232310154. Its totient is φ = 1212232310152.

The previous prime is 1212232310131. The next prime is 1212232310171. The reversal of 1212232310153 is 3510132322121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192820018569 + 19412291584 = 1092163^2 + 139328^2 .

It is an emirp because it is prime and its reverse (3510132322121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212232310153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212232390153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606116155076 + 606116155077.

It is an arithmetic number, because the mean of its divisors is an integer number (606116155077).

Almost surely, 2^{1212232310153} is an apocalyptic number.

It is an amenable number.

1212232310153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212232310153 is an equidigital number, since it uses as much as digits as its factorization.

1212232310153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1212232310153 its reverse (3510132322121), we get a palindrome (4722364632274).

The spelling of 1212232310153 in words is "one trillion, two hundred twelve billion, two hundred thirty-two million, three hundred ten thousand, one hundred fifty-three".