1212103134 has 24 divisors (see below), whose sum is σ = 2864971512. Its totient is φ = 367303920.

The previous prime is 1212103127. The next prime is 1212103141. The reversal of 1212103134 is 4313012121.

It is an interprime number because it is at equal distance from previous prime (1212103127) and next prime (1212103141).

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

It is a congruent number.

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, 3060669 + ... + 3061064.

It is an arithmetic number, because the mean of its divisors is an integer number (119373813).

Almost surely, 2^1212103134 is an apocalyptic number.

1212103134 is an abundant number, since it is smaller than the sum of its proper divisors (1652868378).

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

1212103134 is a wasteful number, since it uses less digits than its factorization.

1212103134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121752 (or 6121749 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1212103134 is about 34815.2715629219. The cubic root of 1212103134 is about 1066.2192635174.

Adding to 1212103134 its reverse (4313012121), we get a palindrome (5525115255).

The spelling of 1212103134 in words is "one billion, two hundred twelve million, one hundred three thousand, one hundred thirty-four".