1201403541231 has 48 divisors (see below), whose sum is σ = 1930941780480. Its totient is φ = 737782842240.

The previous prime is 1201403541199. The next prime is 1201403541241. The reversal of 1201403541231 is 1321453041021.

1201403541231 is a `hidden beast` number, since 1 + 20 + 1 + 403 + 5 + 4 + 1 + 231 = 666.

It is not a de Polignac number, because 1201403541231 - 2⁵ = 1201403541199 is a prime.

It is a super-2 number, since 2×1201403541231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1201403541195 and 1201403541204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201403541241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1271205 + ... + 2004686.

It is an arithmetic number, because the mean of its divisors is an integer number (40227953760).

Almost surely, 2^{1201403541231} is an apocalyptic number.

1201403541231 is a deficient number, since it is larger than the sum of its proper divisors (729538239249).

1201403541231 is a wasteful number, since it uses less digits than its factorization.

1201403541231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275981 (or 3275958 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1201403541231 its reverse (1321453041021), we get a palindrome (2522856582252).

The spelling of 1201403541231 in words is "one trillion, two hundred one billion, four hundred three million, five hundred forty-one thousand, two hundred thirty-one".