1213140103231 has 16 divisors (see below), whose sum is σ = 1468178084160. Its totient is φ = 978549903360.

The previous prime is 1213140103211. The next prime is 1213140103243. The reversal of 1213140103231 is 1323010413121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213140103231 is a prime.

It is a super-2 number, since 2×1213140103231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213140103211) 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, 386851 + ... + 1604971.

It is an arithmetic number, because the mean of its divisors is an integer number (91761130260).

Almost surely, 2^{1213140103231} is an apocalyptic number.

1213140103231 is a deficient number, since it is larger than the sum of its proper divisors (255037980929).

1213140103231 is a wasteful number, since it uses less digits than its factorization.

1213140103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226514.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213140103231 its reverse (1323010413121), we get a palindrome (2536150516352).

The spelling of 1213140103231 in words is "one trillion, two hundred thirteen billion, one hundred forty million, one hundred three thousand, two hundred thirty-one".