103021212113 has 8 divisors (see below), whose sum is σ = 104509294536. Its totient is φ = 101535206400.

The previous prime is 103021212103. The next prime is 103021212143. The reversal of 103021212113 is 311212120301.

It can be written as a sum of positive squares in 4 ways, for example, as 21740912704 + 81280299409 = 147448^2 + 285097^2 .

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 103021212113 - 2⁴ = 103021212097 is a prime.

It is a super-2 number, since 2×103021212113² (a number of 23 digits) contains 22 as substring.

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 = 103021212091 and 103021212100.

It is not an unprimeable number, because it can be changed into a prime (103021212103) 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, 419108 + ... + 617813.

It is an arithmetic number, because the mean of its divisors is an integer number (13063661817).

Almost surely, 2^103021212113 is an apocalyptic number.

It is an amenable number.

103021212113 is a deficient number, since it is larger than the sum of its proper divisors (1488082423).

103021212113 is a wasteful number, since it uses less digits than its factorization.

103021212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038355.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103021212113 its reverse (311212120301), we get a palindrome (414233332414).

The spelling of 103021212113 in words is "one hundred three billion, twenty-one million, two hundred twelve thousand, one hundred thirteen".