1213274030 has 32 divisors (see below), whose sum is σ = 2245396896. Its totient is φ = 471671424.

The previous prime is 1213273883. The next prime is 1213274033. The reversal of 1213274030 is 304723121.

It is a junction number, because it is equal to n+sod(n) for n = 1213273987 and 1213274005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213274033) 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, 645452 + ... + 647328.

It is an arithmetic number, because the mean of its divisors is an integer number (70168653).

Almost surely, 2^1213274030 is an apocalyptic number.

1213274030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213274030 is a deficient number, since it is larger than the sum of its proper divisors (1032122866).

1213274030 is a wasteful number, since it uses less digits than its factorization.

1213274030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1213274030 is about 34832.0833428034. The cubic root of 1213274030 is about 1066.5624769110.

Adding to 1213274030 its reverse (304723121), we get a palindrome (1517997151).

The spelling of 1213274030 in words is "one billion, two hundred thirteen million, two hundred seventy-four thousand, thirty".