1131203442657 has 8 divisors (see below), whose sum is σ = 1513716280576. Its totient is φ = 751413116592.

The previous prime is 1131203442619. The next prime is 1131203442661. The reversal of 1131203442657 is 7562443021311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131203442657 - 2²⁶ = 1131136333793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131203442667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680626993 + ... + 680628654.

It is an arithmetic number, because the mean of its divisors is an integer number (189214535072).

Almost surely, 2^{1131203442657} is an apocalyptic number.

It is an amenable number.

1131203442657 is a deficient number, since it is larger than the sum of its proper divisors (382512837919).

1131203442657 is a wasteful number, since it uses less digits than its factorization.

1131203442657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361255927.

The product of its (nonzero) digits is 120960, while the sum is 39.

Adding to 1131203442657 its reverse (7562443021311), we get a palindrome (8693646463968).

The spelling of 1131203442657 in words is "one trillion, one hundred thirty-one billion, two hundred three million, four hundred forty-two thousand, six hundred fifty-seven".