400121190463 has 2 divisors, whose sum is σ = 400121190464. Its totient is φ = 400121190462.

The previous prime is 400121190461. The next prime is 400121190481. The reversal of 400121190463 is 364091121004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400121190463 - 2¹ = 400121190461 is a prime.

Together with 400121190461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400121190461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200060595231 + 200060595232.

It is an arithmetic number, because the mean of its divisors is an integer number (200060595232).

Almost surely, 2^400121190463 is an apocalyptic number.

400121190463 is a deficient number, since it is larger than the sum of its proper divisors (1).

400121190463 is an equidigital number, since it uses as much as digits as its factorization.

400121190463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 400121190463 in words is "four hundred billion, one hundred twenty-one million, one hundred ninety thousand, four hundred sixty-three".