30231331020061 has 2 divisors, whose sum is σ = 30231331020062. Its totient is φ = 30231331020060.

The previous prime is 30231331020019. The next prime is 30231331020097. The reversal of 30231331020061 is 16002013313203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30167215715961 + 64115304100 = 5492469^2 + 253210^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231331020061 - 2³¹ = 30229183536413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30231331020661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115665510030 + 15115665510031.

It is an arithmetic number, because the mean of its divisors is an integer number (15115665510031).

Almost surely, 2^{30231331020061} is an apocalyptic number.

It is an amenable number.

30231331020061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231331020061 is an equidigital number, since it uses as much as digits as its factorization.

30231331020061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 30231331020061 its reverse (16002013313203), we get a palindrome (46233344333264).

The spelling of 30231331020061 in words is "thirty trillion, two hundred thirty-one billion, three hundred thirty-one million, twenty thousand, sixty-one".