1213131096 has 96 divisors (see below), whose sum is σ = 3354858000. Its totient is φ = 395907072.

The previous prime is 1213131077. The next prime is 1213131097. The reversal of 1213131096 is 6901313121.

It is a super-2 number, since 2×1213131096² = 2943374112164322432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213131097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1499140 + ... + 1499948.

Almost surely, 2^1213131096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213131096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677429000).

1213131096 is an abundant number, since it is smaller than the sum of its proper divisors (2141726904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213131096 is a wasteful number, since it uses less digits than its factorization.

1213131096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1213131096 is about 34830.0315245335. The cubic root of 1213131096 is about 1066.5205918890.

The spelling of 1213131096 in words is "one billion, two hundred thirteen million, one hundred thirty-one thousand, ninety-six".