1400120201 has 4 divisors (see below), whose sum is σ = 1400362512. Its totient is φ = 1399877892.

The previous prime is 1400120179. The next prime is 1400120233. The reversal of 1400120201 is 1020210041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1020210041 = 313 ⋅3259457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400120201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400126201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112271 + ... + 124116.

It is an arithmetic number, because the mean of its divisors is an integer number (350090628).

Almost surely, 2^1400120201 is an apocalyptic number.

It is an amenable number.

1400120201 is a deficient number, since it is larger than the sum of its proper divisors (242311).

1400120201 is an equidigital number, since it uses as much as digits as its factorization.

1400120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242310.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1400120201 is about 37418.1800866905. The cubic root of 1400120201 is about 1118.7209572436.

Adding to 1400120201 its reverse (1020210041), we get a palindrome (2420330242).

The spelling of 1400120201 in words is "one billion, four hundred million, one hundred twenty thousand, two hundred one".