20133513293 has 2 divisors, whose sum is σ = 20133513294. Its totient is φ = 20133513292.

The previous prime is 20133513251. The next prime is 20133513307. The reversal of 20133513293 is 39231533102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15366577444 + 4766935849 = 123962^2 + 69043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133513293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133513893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066756646 + 10066756647.

It is an arithmetic number, because the mean of its divisors is an integer number (10066756647).

Almost surely, 2^20133513293 is an apocalyptic number.

It is an amenable number.

20133513293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133513293 is an equidigital number, since it uses as much as digits as its factorization.

20133513293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 32.

The spelling of 20133513293 in words is "twenty billion, one hundred thirty-three million, five hundred thirteen thousand, two hundred ninety-three".