102021111310 has 32 divisors (see below), whose sum is σ = 187893486432. Its totient is φ = 39873231360.

The previous prime is 102021111307. The next prime is 102021111319. The reversal of 102021111310 is 13111120201.

It is a happy number.

It is a super-2 number, since 2×102021111310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021111319) 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, 574951 + ... + 731170.

It is an arithmetic number, because the mean of its divisors is an integer number (5871671451).

Almost surely, 2^102021111310 is an apocalyptic number.

102021111310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021111310 is a deficient number, since it is larger than the sum of its proper divisors (85872375122).

102021111310 is a wasteful number, since it uses less digits than its factorization.

102021111310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306308.

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

Adding to 102021111310 its reverse (13111120201), we get a palindrome (115132231511).

The spelling of 102021111310 in words is "one hundred two billion, twenty-one million, one hundred eleven thousand, three hundred ten".