1201153401 has 16 divisors (see below), whose sum is σ = 2033699200. Its totient is φ = 686373264.

The previous prime is 1201153397. The next prime is 1201153409. The reversal of 1201153401 is 1043511021.

1201153401 is a `hidden beast` number, since 120 + 11 + 534 + 0 + 1 = 666.

It is not a de Polignac number, because 1201153401 - 2² = 1201153397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201153409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177466 + ... + 3177843.

It is an arithmetic number, because the mean of its divisors is an integer number (127106200).

Almost surely, 2^1201153401 is an apocalyptic number.

It is an amenable number.

1201153401 is a deficient number, since it is larger than the sum of its proper divisors (832545799).

1201153401 is an equidigital number, since it uses as much as digits as its factorization.

1201153401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355325 (or 6355319 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1201153401 is about 34657.6600623874. The cubic root of 1201153401 is about 1062.9989244532.

Adding to 1201153401 its reverse (1043511021), we get a palindrome (2244664422).

The spelling of 1201153401 in words is "one billion, two hundred one million, one hundred fifty-three thousand, four hundred one".