1212103013311 has 16 divisors (see below), whose sum is σ = 1228459392160. Its totient is φ = 1195890168960.

The previous prime is 1212103013281. The next prime is 1212103013321. The reversal of 1212103013311 is 1133103012121.

It is a cyclic number.

It is not a de Polignac number, because 1212103013311 - 2¹³ = 1212103005119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212103013321) 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, 11678401 + ... + 11781733.

It is an arithmetic number, because the mean of its divisors is an integer number (76778712010).

Almost surely, 2^{1212103013311} is an apocalyptic number.

1212103013311 is a deficient number, since it is larger than the sum of its proper divisors (16356378849).

1212103013311 is a wasteful number, since it uses less digits than its factorization.

1212103013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104026.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1212103013311 its reverse (1133103012121), we get a palindrome (2345206025432).

The spelling of 1212103013311 in words is "one trillion, two hundred twelve billion, one hundred three million, thirteen thousand, three hundred eleven".