102021031101 has 16 divisors (see below), whose sum is σ = 150484290048. Its totient is φ = 60960068400.

The previous prime is 102021031087. The next prime is 102021031109. The reversal of 102021031101 is 101130120201.

It is not a de Polignac number, because 102021031101 - 2⁶ = 102021031037 is a prime.

It is a super-2 number, since 2×102021031101² (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 (102021031109) 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, 21769111 + ... + 21773796.

It is an arithmetic number, because the mean of its divisors is an integer number (9405268128).

Almost surely, 2^102021031101 is an apocalyptic number.

102021031101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102021031101 is a deficient number, since it is larger than the sum of its proper divisors (48463258947).

102021031101 is a wasteful number, since it uses less digits than its factorization.

102021031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43542992.

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

Adding to 102021031101 its reverse (101130120201), we get a palindrome (203151151302).

The spelling of 102021031101 in words is "one hundred two billion, twenty-one million, thirty-one thousand, one hundred one".