97030147021 has 4 divisors (see below), whose sum is σ = 99286662112. Its totient is φ = 94773631932.

The previous prime is 97030147009. The next prime is 97030147037. The reversal of 97030147021 is 12074103079.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12074103079 = 41 ⋅294490319.

It is a cyclic number.

It is not a de Polignac number, because 97030147021 - 2⁷ = 97030146893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97030147091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128257481 + ... + 1128257566.

It is an arithmetic number, because the mean of its divisors is an integer number (24821665528).

Almost surely, 2^97030147021 is an apocalyptic number.

It is an amenable number.

97030147021 is a deficient number, since it is larger than the sum of its proper divisors (2256515091).

97030147021 is a wasteful number, since it uses less digits than its factorization.

97030147021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256515090.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 97030147021 in words is "ninety-seven billion, thirty million, one hundred forty-seven thousand, twenty-one".