1333113421 has 2 divisors, whose sum is σ = 1333113422. Its totient is φ = 1333113420.

The previous prime is 1333113407. The next prime is 1333113427. The reversal of 1333113421 is 1243113331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1045810921 + 287302500 = 32339^2 + 16950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1333113421 - 2¹³ = 1333105229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1333113392 and 1333113401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1333113427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666556710 + 666556711.

It is an arithmetic number, because the mean of its divisors is an integer number (666556711).

Almost surely, 2^1333113421 is an apocalyptic number.

It is an amenable number.

1333113421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333113421 is an equidigital number, since it uses as much as digits as its factorization.

1333113421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 1333113421 is about 36511.8257691943. The cubic root of 1333113421 is about 1100.5819017606.

Adding to 1333113421 its reverse (1243113331), we get a palindrome (2576226752).

The spelling of 1333113421 in words is "one billion, three hundred thirty-three million, one hundred thirteen thousand, four hundred twenty-one".