1213137032 has 32 divisors (see below), whose sum is σ = 2296926720. Its totient is φ = 600653760.

The previous prime is 1213137031. The next prime is 1213137053. The reversal of 1213137032 is 2307313121.

It is a junction number, because it is equal to n+sod(n) for n = 1213136989 and 1213137007.

It is not an unprimeable number, because it can be changed into a prime (1213137031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356057 + ... + 359447.

It is an arithmetic number, because the mean of its divisors is an integer number (71778960).

Almost surely, 2^1213137032 is an apocalyptic number.

It is an amenable number.

1213137032 is a deficient number, since it is larger than the sum of its proper divisors (1083789688).

1213137032 is a wasteful number, since it uses less digits than its factorization.

1213137032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1213137032 is about 34830.1167382482. The cubic root of 1213137032 is about 1066.5223314251.

It can be divided in two parts, 121313703 and 2, that multiplied together give a triangular number (242627406 = T₂₂₀₂₈).

The spelling of 1213137032 in words is "one billion, two hundred thirteen million, one hundred thirty-seven thousand, thirty-two".