402120011311 has 2 divisors, whose sum is σ = 402120011312. Its totient is φ = 402120011310.

The previous prime is 402120011269. The next prime is 402120011327. The reversal of 402120011311 is 113110021204.

It is an a-pointer prime, because the next prime (402120011327) can be obtained adding 402120011311 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402120011311 is a prime.

It is a super-3 number, since 3×402120011311³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402120011341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201060005655 + 201060005656.

It is an arithmetic number, because the mean of its divisors is an integer number (201060005656).

Almost surely, 2^402120011311 is an apocalyptic number.

402120011311 is a deficient number, since it is larger than the sum of its proper divisors (1).

402120011311 is an equidigital number, since it uses as much as digits as its factorization.

402120011311 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 16.

Adding to 402120011311 its reverse (113110021204), we get a palindrome (515230032515).

The spelling of 402120011311 in words is "four hundred two billion, one hundred twenty million, eleven thousand, three hundred eleven".