87012111121077 has 8 divisors (see below), whose sum is σ = 116850796709920. Its totient is φ = 57590749806480.

The previous prime is 87012111121051. The next prime is 87012111121081. The reversal of 87012111121077 is 77012111121078.

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

It is not a de Polignac number, because 87012111121077 - 2¹¹ = 87012111119029 is a prime.

It is a super-2 number, since 2×87012111121077² (a number of 29 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 (87012111121277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104331068074 + ... + 104331068907.

It is an arithmetic number, because the mean of its divisors is an integer number (14606349588740).

Almost surely, 2^{87012111121077} is an apocalyptic number.

It is an amenable number.

87012111121077 is a deficient number, since it is larger than the sum of its proper divisors (29838685588843).

87012111121077 is a wasteful number, since it uses less digits than its factorization.

87012111121077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208662137123.

The product of its (nonzero) digits is 10976, while the sum is 39.

Subtracting from 87012111121077 its reverse (77012111121078), we obtain a palindrome (9999999999999).

The spelling of 87012111121077 in words is "eighty-seven trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, seventy-seven".