102311121010 has 64 divisors (see below), whose sum is σ = 217803582720. Its totient is φ = 33856462080.

The previous prime is 102311120959. The next prime is 102311121037. The reversal of 102311121010 is 10121113201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7079512 + ... + 7093948.

It is an arithmetic number, because the mean of its divisors is an integer number (3403180980).

Almost surely, 2^102311121010 is an apocalyptic number.

102311121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102311121010 is an abundant number, since it is smaller than the sum of its proper divisors (115492461710).

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

102311121010 is a wasteful number, since it uses less digits than its factorization.

102311121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17971.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 102311121010 its reverse (10121113201), we get a palindrome (112432234211).

The spelling of 102311121010 in words is "one hundred two billion, three hundred eleven million, one hundred twenty-one thousand, ten".