1401123203191 has 2 divisors, whose sum is σ = 1401123203192. Its totient is φ = 1401123203190.

The previous prime is 1401123203149. The next prime is 1401123203341. The reversal of 1401123203191 is 1913023211041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401123203191 - 2¹⁹ = 1401122678903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401123203591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700561601595 + 700561601596.

It is an arithmetic number, because the mean of its divisors is an integer number (700561601596).

Almost surely, 2^{1401123203191} is an apocalyptic number.

1401123203191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401123203191 is an equidigital number, since it uses as much as digits as its factorization.

1401123203191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1401123203191 in words is "one trillion, four hundred one billion, one hundred twenty-three million, two hundred three thousand, one hundred ninety-one".