1101397031 has 8 divisors (see below), whose sum is σ = 1266463104. Its totient is φ = 938261880.

The previous prime is 1101397027. The next prime is 1101397043. The reversal of 1101397031 is 1307931011.

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

It is a cyclic number.

It is not a de Polignac number, because 1101397031 - 2² = 1101397027 is a prime.

It is a super-2 number, since 2×1101397031² = 2426150839791229922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101397051) 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, 481505 + ... + 483786.

It is an arithmetic number, because the mean of its divisors is an integer number (158307888).

Almost surely, 2^1101397031 is an apocalyptic number.

1101397031 is a deficient number, since it is larger than the sum of its proper divisors (165066073).

1101397031 is an equidigital number, since it uses as much as digits as its factorization.

1101397031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965461.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 1101397031 is about 33187.3022555314. The cubic root of 1101397031 is about 1032.7169388619.

The spelling of 1101397031 in words is "one billion, one hundred one million, three hundred ninety-seven thousand, thirty-one".