1230121310 has 32 divisors (see below), whose sum is σ = 2417103072. Its totient is φ = 447022080.

The previous prime is 1230121301. The next prime is 1230121357. The reversal of 1230121310 is 131210321.

It is a super-2 number, since 2×1230121310² = 3026396874632232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232454 + ... + 237686.

It is an arithmetic number, because the mean of its divisors is an integer number (75534471).

Almost surely, 2^1230121310 is an apocalyptic number.

1230121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230121310 is a deficient number, since it is larger than the sum of its proper divisors (1186981762).

1230121310 is a wasteful number, since it uses less digits than its factorization.

1230121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1230121310 is about 35073.0852649150. The cubic root of 1230121310 is about 1071.4764925275.

Adding to 1230121310 its reverse (131210321), we get a palindrome (1361331631).

The spelling of 1230121310 in words is "one billion, two hundred thirty million, one hundred twenty-one thousand, three hundred ten".