20101400149 has 2 divisors, whose sum is σ = 20101400150. Its totient is φ = 20101400148.

The previous prime is 20101400119. The next prime is 20101400177. The reversal of 20101400149 is 94100410102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14317797649 + 5783602500 = 119657^2 + 76050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101400149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101400119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050700074 + 10050700075.

It is an arithmetic number, because the mean of its divisors is an integer number (10050700075).

Almost surely, 2^20101400149 is an apocalyptic number.

It is an amenable number.

20101400149 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101400149 is an equidigital number, since it uses as much as digits as its factorization.

20101400149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 20101400149 in words is "twenty billion, one hundred one million, four hundred thousand, one hundred forty-nine".