1192734927421 has 2 divisors, whose sum is σ = 1192734927422. Its totient is φ = 1192734927420.

The previous prime is 1192734927299. The next prime is 1192734927427. The reversal of 1192734927421 is 1247294372911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1138945721796 + 53789205625 = 1067214^2 + 231925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1192734927421 - 2¹¹ = 1192734925373 is a prime.

It is a super-2 number, since 2×1192734927421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1192734927427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 596367463710 + 596367463711.

It is an arithmetic number, because the mean of its divisors is an integer number (596367463711).

Almost surely, 2^{1192734927421} is an apocalyptic number.

It is an amenable number.

1192734927421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1192734927421 is an equidigital number, since it uses as much as digits as its factorization.

1192734927421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The spelling of 1192734927421 in words is "one trillion, one hundred ninety-two billion, seven hundred thirty-four million, nine hundred twenty-seven thousand, four hundred twenty-one".