120213121291 has 2 divisors, whose sum is σ = 120213121292. Its totient is φ = 120213121290.

The previous prime is 120213121267. The next prime is 120213121307. The reversal of 120213121291 is 192121312021.

It is a strong prime.

It is an emirp because it is prime and its reverse (192121312021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120213121291 - 2¹⁹ = 120212597003 is a prime.

It is not a weakly prime, because it can be changed into another prime (120213821291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106560645 + 60106560646.

It is an arithmetic number, because the mean of its divisors is an integer number (60106560646).

Almost surely, 2^120213121291 is an apocalyptic number.

120213121291 is a deficient number, since it is larger than the sum of its proper divisors (1).

120213121291 is an equidigital number, since it uses as much as digits as its factorization.

120213121291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 120213121291 in words is "one hundred twenty billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred ninety-one".