102477021355 has 4 divisors (see below), whose sum is σ = 122972425632. Its totient is φ = 81981617080.

The previous prime is 102477021319. The next prime is 102477021373. The reversal of 102477021355 is 553120774201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553120774201 = 12821 ⋅43141781.

It is not a de Polignac number, because 102477021355 - 2¹⁷ = 102476890283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10247702131 + ... + 10247702140.

It is an arithmetic number, because the mean of its divisors is an integer number (30743106408).

Almost surely, 2^102477021355 is an apocalyptic number.

102477021355 is a deficient number, since it is larger than the sum of its proper divisors (20495404277).

102477021355 is an equidigital number, since it uses as much as digits as its factorization.

102477021355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20495404276.

The product of its (nonzero) digits is 58800, while the sum is 37.

Adding to 102477021355 its reverse (553120774201), we get a palindrome (655597795556).

The spelling of 102477021355 in words is "one hundred two billion, four hundred seventy-seven million, twenty-one thousand, three hundred fifty-five".