30142140997 has 2 divisors, whose sum is σ = 30142140998. Its totient is φ = 30142140996.

The previous prime is 30142140991. The next prime is 30142141009. The reversal of 30142140997 is 79904124103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29375903236 + 766237761 = 171394^2 + 27681^2 .

It is a cyclic number.

It is not a de Polignac number, because 30142140997 - 2⁷ = 30142140869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30142140991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071070498 + 15071070499.

It is an arithmetic number, because the mean of its divisors is an integer number (15071070499).

Almost surely, 2^30142140997 is an apocalyptic number.

It is an amenable number.

30142140997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30142140997 is an equidigital number, since it uses as much as digits as its factorization.

30142140997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 30142140997 in words is "thirty billion, one hundred forty-two million, one hundred forty thousand, nine hundred ninety-seven".