203112032342981 has 2 divisors, whose sum is σ = 203112032342982. Its totient is φ = 203112032342980.

The previous prime is 203112032342903. The next prime is 203112032343001. The reversal of 203112032342981 is 189243230211302.

203112032342981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176911546656100 + 26200485686881 = 13300810^2 + 5118641^2 .

It is a cyclic number.

It is not a de Polignac number, because 203112032342981 - 2⁴² = 198713985831877 is a prime.

It is a super-2 number, since 2×203112032342981² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203112032342381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556016171490 + 101556016171491.

It is an arithmetic number, because the mean of its divisors is an integer number (101556016171491).

Almost surely, 2^{203112032342981} is an apocalyptic number.

It is an amenable number.

203112032342981 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112032342981 is an equidigital number, since it uses as much as digits as its factorization.

203112032342981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 203112032342981 in words is "two hundred three trillion, one hundred twelve billion, thirty-two million, three hundred forty-two thousand, nine hundred eighty-one".