101401387 has 2 divisors, whose sum is σ = 101401388. Its totient is φ = 101401386.

The previous prime is 101401373. The next prime is 101401393. The reversal of 101401387 is 783104101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101401387 is a prime.

It is not a weakly prime, because it can be changed into another prime (101401357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50700693 + 50700694.

It is an arithmetic number, because the mean of its divisors is an integer number (50700694).

Almost surely, 2^101401387 is an apocalyptic number.

101401387 is a deficient number, since it is larger than the sum of its proper divisors (1).

101401387 is an equidigital number, since it uses as much as digits as its factorization.

101401387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 101401387 is about 10069.8255694923. The cubic root of 101401387 is about 466.3170538488.

Adding to 101401387 its reverse (783104101), we get a palindrome (884505488).

The spelling of 101401387 in words is "one hundred one million, four hundred one thousand, three hundred eighty-seven".