1231225310 has 32 divisors (see below), whose sum is σ = 2549601792. Its totient is φ = 419335200.

The previous prime is 1231225291. The next prime is 1231225313. The reversal of 1231225310 is 135221321.

It is a super-2 number, since 2×1231225310² = 3031831527969192200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231225313) 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, 47672 + ... + 68811.

It is an arithmetic number, because the mean of its divisors is an integer number (79675056).

Almost surely, 2^1231225310 is an apocalyptic number.

1231225310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231225310 is an abundant number, since it is smaller than the sum of its proper divisors (1318376482).

1231225310 is a wasteful number, since it uses less digits than its factorization.

1231225310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116648.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1231225310 is about 35088.8202993489. The cubic root of 1231225310 is about 1071.7969368984.

Adding to 1231225310 its reverse (135221321), we get a palindrome (1366446631).

The spelling of 1231225310 in words is "one billion, two hundred thirty-one million, two hundred twenty-five thousand, three hundred ten".