1213031034 has 24 divisors (see below), whose sum is σ = 2677825332. Its totient is φ = 396714240.

The previous prime is 1213030997. The next prime is 1213031059. The reversal of 1213031034 is 4301303121.

It can be written as a sum of positive squares in 2 ways, for example, as 1211248809 + 1782225 = 34803^2 + 1335^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213030998 and 1213031016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634807 + ... + 636714.

Almost surely, 2^1213031034 is an apocalyptic number.

1213031034 is an abundant number, since it is smaller than the sum of its proper divisors (1464794298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213031034 is a wasteful number, since it uses less digits than its factorization.

1213031034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271582 (or 1271579 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1213031034 is about 34828.5950621038. The cubic root of 1213031034 is about 1066.4912680130.

Adding to 1213031034 its reverse (4301303121), we get a palindrome (5514334155).

The spelling of 1213031034 in words is "one billion, two hundred thirteen million, thirty-one thousand, thirty-four".