20120202293 has 2 divisors, whose sum is σ = 20120202294. Its totient is φ = 20120202292.

The previous prime is 20120202187. The next prime is 20120202307. The reversal of 20120202293 is 39220202102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20116599889 + 3602404 = 141833^2 + 1898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120202293 is a prime.

It is a super-2 number, since 2×20120202293² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120202493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060101146 + 10060101147.

It is an arithmetic number, because the mean of its divisors is an integer number (10060101147).

Almost surely, 2^20120202293 is an apocalyptic number.

It is an amenable number.

20120202293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120202293 is an equidigital number, since it uses as much as digits as its factorization.

20120202293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20120202293 its reverse (39220202102), we get a palindrome (59340404395).

The spelling of 20120202293 in words is "twenty billion, one hundred twenty million, two hundred two thousand, two hundred ninety-three".