97212123538 has 8 divisors (see below), whose sum is σ = 148920700032. Its totient is φ = 47571890196.

The previous prime is 97212123479. The next prime is 97212123551. The reversal of 97212123538 is 83532121279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 97212123494 and 97212123503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517085670 + ... + 517085857.

It is an arithmetic number, because the mean of its divisors is an integer number (18615087504).

Almost surely, 2^97212123538 is an apocalyptic number.

97212123538 is a deficient number, since it is larger than the sum of its proper divisors (51708576494).

97212123538 is a wasteful number, since it uses less digits than its factorization.

97212123538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034171576.

The product of its digits is 181440, while the sum is 43.

The spelling of 97212123538 in words is "ninety-seven billion, two hundred twelve million, one hundred twenty-three thousand, five hundred thirty-eight".