102137802121487 has 16 divisors (see below), whose sum is σ = 115266578774400. Its totient is φ = 89649687318240.

The previous prime is 102137802121477. The next prime is 102137802121489. The reversal of 102137802121487 is 784121208731201.

It is a cyclic number.

It is not a de Polignac number, because 102137802121487 - 2⁴ = 102137802121471 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 (102137802121489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26112464 + ... + 29768042.

It is an arithmetic number, because the mean of its divisors is an integer number (7204161173400).

Almost surely, 2^{102137802121487} is an apocalyptic number.

102137802121487 is a deficient number, since it is larger than the sum of its proper divisors (13128776652913).

102137802121487 is a wasteful number, since it uses less digits than its factorization.

102137802121487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743206.

The product of its (nonzero) digits is 301056, while the sum is 47.

The spelling of 102137802121487 in words is "one hundred two trillion, one hundred thirty-seven billion, eight hundred two million, one hundred twenty-one thousand, four hundred eighty-seven".