212303120311901 has 2 divisors, whose sum is σ = 212303120311902. Its totient is φ = 212303120311900.

The previous prime is 212303120311883. The next prime is 212303120311921. The reversal of 212303120311901 is 109113021303212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136858435219801 + 75444685092100 = 11698651^2 + 8685890^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303120311901 - 2²² = 212303116117597 is a prime.

It is a super-2 number, since 2×212303120311901² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212303120311921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151560155950 + 106151560155951.

It is an arithmetic number, because the mean of its divisors is an integer number (106151560155951).

Almost surely, 2^{212303120311901} is an apocalyptic number.

It is an amenable number.

212303120311901 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303120311901 is an equidigital number, since it uses as much as digits as its factorization.

212303120311901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 212303120311901 in words is "two hundred twelve trillion, three hundred three billion, one hundred twenty million, three hundred eleven thousand, nine hundred one".