31120212121003 has 2 divisors, whose sum is σ = 31120212121004. Its totient is φ = 31120212121002.

The previous prime is 31120212120973. The next prime is 31120212121027. The reversal of 31120212121003 is 30012121202113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31120212121003 is a prime.

It is not a weakly prime, because it can be changed into another prime (31120212121703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560106060501 + 15560106060502.

It is an arithmetic number, because the mean of its divisors is an integer number (15560106060502).

Almost surely, 2^{31120212121003} is an apocalyptic number.

31120212121003 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120212121003 is an equidigital number, since it uses as much as digits as its factorization.

31120212121003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31120212121003 its reverse (30012121202113), we get a palindrome (61132333323116).

The spelling of 31120212121003 in words is "thirty-one trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, three".