97211055031 has 8 divisors (see below), whose sum is σ = 98127469440. Its totient is φ = 96294787128.

The previous prime is 97211054977. The next prime is 97211055047. The reversal of 97211055031 is 13055011279.

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

It is a cyclic number.

It is not a de Polignac number, because 97211055031 - 2⁷ = 97211054903 is a prime.

It is a super-2 number, since 2×97211055031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97211055091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668270 + ... + 1725556.

It is an arithmetic number, because the mean of its divisors is an integer number (12265933680).

Almost surely, 2^97211055031 is an apocalyptic number.

97211055031 is a deficient number, since it is larger than the sum of its proper divisors (916414409).

97211055031 is a wasteful number, since it uses less digits than its factorization.

97211055031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73253.

The product of its (nonzero) digits is 9450, while the sum is 34.

The spelling of 97211055031 in words is "ninety-seven billion, two hundred eleven million, fifty-five thousand, thirty-one".