1245323031 has 32 divisors (see below), whose sum is σ = 1719553536. Its totient is φ = 801360000.

The previous prime is 1245323029. The next prime is 1245323039. The reversal of 1245323031 is 1303235421.

1245323031 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1245323031 - 2¹ = 1245323029 is a prime.

It is a super-2 number, since 2×1245323031² = 3101658903078053922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245322992 and 1245323010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245323039) 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, 2301621 + ... + 2302161.

It is an arithmetic number, because the mean of its divisors is an integer number (53736048).

Almost surely, 2^1245323031 is an apocalyptic number.

1245323031 is a deficient number, since it is larger than the sum of its proper divisors (474230505).

1245323031 is a wasteful number, since it uses less digits than its factorization.

1245323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1245323031 is about 35289.1347442807. The cubic root of 1245323031 is about 1075.8721693587.

Adding to 1245323031 its reverse (1303235421), we get a palindrome (2548558452).

The spelling of 1245323031 in words is "one billion, two hundred forty-five million, three hundred twenty-three thousand, thirty-one".