1213224400139 has 2 divisors, whose sum is σ = 1213224400140. Its totient is φ = 1213224400138.

The previous prime is 1213224400133. The next prime is 1213224400151. The reversal of 1213224400139 is 9310044223121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213224400139 - 2¹⁶ = 1213224334603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213224400133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606612200069 + 606612200070.

It is an arithmetic number, because the mean of its divisors is an integer number (606612200070).

Almost surely, 2^{1213224400139} is an apocalyptic number.

1213224400139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213224400139 is an equidigital number, since it uses as much as digits as its factorization.

1213224400139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1213224400139 in words is "one trillion, two hundred thirteen billion, two hundred twenty-four million, four hundred thousand, one hundred thirty-nine".