102991701030 has 64 divisors (see below), whose sum is σ = 249304824000. Its totient is φ = 27229063680.

The previous prime is 102991701011. The next prime is 102991701031. The reversal of 102991701030 is 30107199201.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102991700982 and 102991701000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102991701031) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2396976 + ... + 2439564.

It is an arithmetic number, because the mean of its divisors is an integer number (3895387875).

Almost surely, 2^102991701030 is an apocalyptic number.

102991701030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102991701030 is an abundant number, since it is smaller than the sum of its proper divisors (146313122970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102991701030 is a wasteful number, since it uses less digits than its factorization.

102991701030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43289.

The product of its (nonzero) digits is 3402, while the sum is 33.

The spelling of 102991701030 in words is "one hundred two billion, nine hundred ninety-one million, seven hundred one thousand, thirty".