1201031331331 has 16 divisors (see below), whose sum is σ = 1375379538624. Its totient is φ = 1038951650304.

The previous prime is 1201031331323. The next prime is 1201031331341. The reversal of 1201031331331 is 1331331301021.

It is a cyclic number.

It is not a de Polignac number, because 1201031331331 - 2³ = 1201031331323 is a prime.

It is a super-2 number, since 2×1201031331331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201031331341) 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, 11610591 + ... + 11713576.

It is an arithmetic number, because the mean of its divisors is an integer number (85961221164).

Almost surely, 2^{1201031331331} is an apocalyptic number.

1201031331331 is a deficient number, since it is larger than the sum of its proper divisors (174348207293).

1201031331331 is a wasteful number, since it uses less digits than its factorization.

1201031331331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23324430.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1201031331331 its reverse (1331331301021), we get a palindrome (2532362632352).

The spelling of 1201031331331 in words is "one trillion, two hundred one billion, thirty-one million, three hundred thirty-one thousand, three hundred thirty-one".