87031211213349 has 64 divisors (see below), whose sum is σ = 139315711557120. Its totient is φ = 53379528975360.

The previous prime is 87031211213329. The next prime is 87031211213407. The reversal of 87031211213349 is 94331211213078.

87031211213349 is a `hidden beast` number, since 8 + 70 + 3 + 1 + 21 + 1 + 213 + 349 = 666.

It is not a de Polignac number, because 87031211213349 - 2⁹ = 87031211212837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87031211213329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149108019 + ... + 149690559.

It is an arithmetic number, because the mean of its divisors is an integer number (2176807993080).

Almost surely, 2^{87031211213349} is an apocalyptic number.

It is an amenable number.

87031211213349 is a deficient number, since it is larger than the sum of its proper divisors (52284500343771).

87031211213349 is a wasteful number, since it uses less digits than its factorization.

87031211213349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583979 (or 583973 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 87031211213349 in words is "eighty-seven trillion, thirty-one billion, two hundred eleven million, two hundred thirteen thousand, three hundred forty-nine".