10203621123212 has 12 divisors (see below), whose sum is σ = 19479640326216. Its totient is φ = 4638009601440.

The previous prime is 10203621123209. The next prime is 10203621123251. The reversal of 10203621123212 is 21232112630201.

10203621123212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10203621123212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115950239993 + ... + 115950240080.

It is an arithmetic number, because the mean of its divisors is an integer number (1623303360518).

Almost surely, 2^{10203621123212} is an apocalyptic number.

It is an amenable number.

10203621123212 is a deficient number, since it is larger than the sum of its proper divisors (9276019203004).

10203621123212 is a wasteful number, since it uses less digits than its factorization.

10203621123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231900480088 (or 231900480086 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 10203621123212 its reverse (21232112630201), we get a palindrome (31435733753413).

The spelling of 10203621123212 in words is "ten trillion, two hundred three billion, six hundred twenty-one million, one hundred twenty-three thousand, two hundred twelve".