102031021121 has 8 divisors (see below), whose sum is σ = 102374653920. Its totient is φ = 101687462208.

The previous prime is 102031021069. The next prime is 102031021189. The reversal of 102031021121 is 121120130201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102031021121 - 2²² = 102026826817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102031021096 and 102031021105.

It is not an unprimeable number, because it can be changed into a prime (102031026121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5064350 + ... + 5084456.

It is an arithmetic number, because the mean of its divisors is an integer number (12796831740).

Almost surely, 2^102031021121 is an apocalyptic number.

It is an amenable number.

102031021121 is a deficient number, since it is larger than the sum of its proper divisors (343632799).

102031021121 is a wasteful number, since it uses less digits than its factorization.

102031021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36943.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102031021121 its reverse (121120130201), we get a palindrome (223151151322).

The spelling of 102031021121 in words is "one hundred two billion, thirty-one million, twenty-one thousand, one hundred twenty-one".