301140629981 has 2 divisors, whose sum is σ = 301140629982. Its totient is φ = 301140629980.

The previous prime is 301140629971. The next prime is 301140629989. The reversal of 301140629981 is 189926041103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300842377081 + 298252900 = 548491^2 + 17270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-301140629981 is a prime.

It is a super-2 number, since 2×301140629981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301140629989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150570314990 + 150570314991.

It is an arithmetic number, because the mean of its divisors is an integer number (150570314991).

Almost surely, 2^301140629981 is an apocalyptic number.

It is an amenable number.

301140629981 is a deficient number, since it is larger than the sum of its proper divisors (1).

301140629981 is an equidigital number, since it uses as much as digits as its factorization.

301140629981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 301140629981 in words is "three hundred one billion, one hundred forty million, six hundred twenty-nine thousand, nine hundred eighty-one".