1012112121203 has 2 divisors, whose sum is σ = 1012112121204. Its totient is φ = 1012112121202.

The previous prime is 1012112121199. The next prime is 1012112121259. The reversal of 1012112121203 is 3021212112101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012112121203 - 2² = 1012112121199 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012112121403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506056060601 + 506056060602.

It is an arithmetic number, because the mean of its divisors is an integer number (506056060602).

Almost surely, 2^{1012112121203} is an apocalyptic number.

1012112121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012112121203 is an equidigital number, since it uses as much as digits as its factorization.

1012112121203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1012112121203 its reverse (3021212112101), we get a palindrome (4033324233304).

The spelling of 1012112121203 in words is "one trillion, twelve billion, one hundred twelve million, one hundred twenty-one thousand, two hundred three".