1213418237701 has 2 divisors, whose sum is σ = 1213418237702. Its totient is φ = 1213418237700.

The previous prime is 1213418237671. The next prime is 1213418237737. The reversal of 1213418237701 is 1077328143121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719808012225 + 493610225476 = 848415^2 + 702574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213418237701 - 2¹³ = 1213418229509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213418237401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606709118850 + 606709118851.

It is an arithmetic number, because the mean of its divisors is an integer number (606709118851).

Almost surely, 2^{1213418237701} is an apocalyptic number.

It is an amenable number.

1213418237701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213418237701 is an equidigital number, since it uses as much as digits as its factorization.

1213418237701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 1213418237701 in words is "one trillion, two hundred thirteen billion, four hundred eighteen million, two hundred thirty-seven thousand, seven hundred one".