1253232031 has 4 divisors (see below), whose sum is σ = 1253368864. Its totient is φ = 1253095200.

The previous prime is 1253231999. The next prime is 1253232049. The reversal of 1253232031 is 1302323521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302323521 = 37 ⋅35197933.

It is a cyclic number.

It is not a de Polignac number, because 1253232031 - 2⁵ = 1253231999 is a prime.

It is a super-2 number, since 2×1253232031² = 3141181047048769922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253231993 and 1253232011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253232131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53610 + ... + 73351.

It is an arithmetic number, because the mean of its divisors is an integer number (313342216).

Almost surely, 2^1253232031 is an apocalyptic number.

1253232031 is a deficient number, since it is larger than the sum of its proper divisors (136833).

1253232031 is an equidigital number, since it uses as much as digits as its factorization.

1253232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136832.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1253232031 is about 35401.0173723863. The cubic root of 1253232031 is about 1078.1449726032.

Adding to 1253232031 its reverse (1302323521), we get a palindrome (2555555552).

The spelling of 1253232031 in words is "one billion, two hundred fifty-three million, two hundred thirty-two thousand, thirty-one".