203025233981 has 2 divisors, whose sum is σ = 203025233982. Its totient is φ = 203025233980.

The previous prime is 203025233933. The next prime is 203025234011. The reversal of 203025233981 is 189332520302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175867841956 + 27157392025 = 419366^2 + 164795^2 .

It is a cyclic number.

It is not a de Polignac number, because 203025233981 - 2¹⁰ = 203025232957 is a prime.

It is a super-2 number, since 2×203025233981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203025233921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101512616990 + 101512616991.

It is an arithmetic number, because the mean of its divisors is an integer number (101512616991).

Almost surely, 2^203025233981 is an apocalyptic number.

It is an amenable number.

203025233981 is a deficient number, since it is larger than the sum of its proper divisors (1).

203025233981 is an equidigital number, since it uses as much as digits as its factorization.

203025233981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 203025233981 in words is "two hundred three billion, twenty-five million, two hundred thirty-three thousand, nine hundred eighty-one".