1230031011 has 16 divisors (see below), whose sum is σ = 1790201088. Its totient is φ = 745029600.

The previous prime is 1230031003. The next prime is 1230031013. The reversal of 1230031011 is 1101300321.

It is not a de Polignac number, because 1230031011 - 2³ = 1230031003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230031013) 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, 50245 + ... + 70601.

It is an arithmetic number, because the mean of its divisors is an integer number (111887568).

Almost surely, 2^1230031011 is an apocalyptic number.

1230031011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1230031011 is a deficient number, since it is larger than the sum of its proper divisors (560170077).

1230031011 is a wasteful number, since it uses less digits than its factorization.

1230031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22202.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1230031011 is about 35071.7979436470. The cubic root of 1230031011 is about 1071.4502740772.

Adding to 1230031011 its reverse (1101300321), we get a palindrome (2331331332).

It can be divided in two parts, 12300310 and 11, that added together give a palindrome (12300321).

The spelling of 1230031011 in words is "one billion, two hundred thirty million, thirty-one thousand, eleven".