243053031 has 32 divisors (see below), whose sum is σ = 362718720. Its totient is φ = 143740800.

The previous prime is 243053021. The next prime is 243053053. The reversal of 243053031 is 130350342.

It is not a de Polignac number, because 243053031 - 2¹⁵ = 243020263 is a prime.

It is a super-2 number, since 2×243053031² = 118149551756573922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243052989 and 243053007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243053021) 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, 351396 + ... + 352086.

It is an arithmetic number, because the mean of its divisors is an integer number (11334960).

Almost surely, 2^243053031 is an apocalyptic number.

243053031 is a deficient number, since it is larger than the sum of its proper divisors (119665689).

243053031 is a wasteful number, since it uses less digits than its factorization.

243053031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 243053031 is about 15590.1581454455. The cubic root of 243053031 is about 624.0705382332.

The spelling of 243053031 in words is "two hundred forty-three million, fifty-three thousand, thirty-one".