1321101241031 has 32 divisors (see below), whose sum is σ = 1571070482688. Its totient is φ = 1095083504640.

The previous prime is 1321101241027. The next prime is 1321101241037. The reversal of 1321101241031 is 1301421011231.

It is a cyclic number.

It is not a de Polignac number, because 1321101241031 - 2² = 1321101241027 is a prime.

It is a super-2 number, since 2×1321101241031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321101240994 and 1321101241012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321101241037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7163480 + ... + 7345586.

It is an arithmetic number, because the mean of its divisors is an integer number (49095952584).

Almost surely, 2^{1321101241031} is an apocalyptic number.

1321101241031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1321101241031 is a deficient number, since it is larger than the sum of its proper divisors (249969241657).

1321101241031 is a wasteful number, since it uses less digits than its factorization.

1321101241031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182751.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1321101241031 its reverse (1301421011231), we get a palindrome (2622522252262).

The spelling of 1321101241031 in words is "one trillion, three hundred twenty-one billion, one hundred one million, two hundred forty-one thousand, thirty-one".